Calculus Examples

$f (x) = {(3 x^{3} + 7)}^{7}$

Step 1

Find the first derivative.

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Step 1.1

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{7}$ and $g (x) = 3 x^{3} + 7$ .

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Step 1.1.1

To apply the Chain Rule, set $u$ as $3 x^{3} + 7$ .

$f' (x) = \frac{d}{d u} (u^{7}) \frac{d}{d x} (3 x^{3} + 7)$

Step 1.1.2

Differentiate using the Power Rule which states that $\frac{d}{d u} [u^{n}]$ is $n u^{n - 1}$ where $n = 7$ .

$f' (x) = 7 u^{6} \frac{d}{d x} (3 x^{3} + 7)$

Step 1.1.3

Replace all occurrences of $u$ with $3 x^{3} + 7$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} \frac{d}{d x} (3 x^{3} + 7)$

Step 1.2

Differentiate.

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Step 1.2.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))$

Step 1.2.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))$

Step 1.2.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (3 (3 x^{2}) + \frac{d}{d x} (7))$

Step 1.2.4

Multiply $3$ by $3$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (9 x^{2} + \frac{d}{d x} (7))$

Step 1.2.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (9 x^{2} + 0)$

Step 1.2.6

Simplify the expression.

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Step 1.2.6.1

Add $9 x^{2}$ and $0$ .

$f' (x) = 7 {(3 x^{3} + 7)}^{6} (9 x^{2})$

Step 1.2.6.2

Multiply $9$ by $7$ .

$f' (x) = 63 {(3 x^{3} + 7)}^{6} x^{2}$

Step 1.2.6.3

Reorder the factors of $63 {(3 x^{3} + 7)}^{6} x^{2}$ .

$f' (x) = 63 x^{2} {(3 x^{3} + 7)}^{6}$

Step 2

Find the second derivative.

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Step 2.1

Since $63$ is constant with respect to $x$ , the derivative of $63 x^{2} {(3 x^{3} + 7)}^{6}$ with respect to $x$ is $63 \frac{d}{d x} [x^{2} {(3 x^{3} + 7)}^{6}]$ .

$f'' (x) = 63 \frac{d}{d x} (x^{2} {(3 x^{3} + 7)}^{6})$

Step 2.2

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x^{2}$ and $g (x) = {(3 x^{3} + 7)}^{6}$ .

$f'' (x) = 63 (x^{2} \frac{d}{d x} ({(3 x^{3} + 7)}^{6}) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.3

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{6}$ and $g (x) = 3 x^{3} + 7$ .

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Step 2.3.1

To apply the Chain Rule, set $u$ as $3 x^{3} + 7$ .

$f'' (x) = 63 (x^{2} (\frac{d}{d u} (u^{6}) \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.3.2

Differentiate using the Power Rule which states that $\frac{d}{d u} [u^{n}]$ is $n u^{n - 1}$ where $n = 6$ .

$f'' (x) = 63 (x^{2} (6 u^{5} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.3.3

Replace all occurrences of $u$ with $3 x^{3} + 7$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4

Differentiate.

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Step 2.4.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (3 (3 x^{2}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.4

Multiply $3$ by $3$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (9 x^{2} + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (9 x^{2} + 0)) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.6

Simplify the expression.

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Step 2.4.6.1

Add $9 x^{2}$ and $0$ .

$f'' (x) = 63 (x^{2} (6 {(3 x^{3} + 7)}^{5} (9 x^{2})) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.4.6.2

Multiply $9$ by $6$ .

$f'' (x) = 63 (x^{2} (54 {(3 x^{3} + 7)}^{5} x^{2}) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.5

Multiply $x^{2}$ by $x^{2}$ by adding the exponents.

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Step 2.5.1

Move $x^{2}$ .

$f'' (x) = 63 (x^{2} x^{2} (54 {(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f'' (x) = 63 (x^{2 + 2} (54 {(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.5.3

Add $2$ and $2$ .

$f'' (x) = 63 (x^{4} (54 {(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{6} \frac{d}{d x} (x^{2}))$

Step 2.6

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 2$ .

$f'' (x) = 63 (x^{4} (54 {(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{6} (2 x))$

Step 2.7

Move $2$ to the left of ${(3 x^{3} + 7)}^{6}$ .

$f'' (x) = 63 (x^{4} (54 {(3 x^{3} + 7)}^{5}) + 2 \cdot ({(3 x^{3} + 7)}^{6} x))$

Step 2.8

Simplify.

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Step 2.8.1

Apply the distributive property.

$f'' (x) = 63 (x^{4} (54 {(3 x^{3} + 7)}^{5})) + 63 (2 {(3 x^{3} + 7)}^{6} x)$

Step 2.8.2

Multiply $54$ by $63$ .

$f'' (x) = 3402 (x^{4} ({(3 x^{3} + 7)}^{5})) + 63 (2 {(3 x^{3} + 7)}^{6} x)$

Step 2.8.3

Multiply $2$ by $63$ .

$f'' (x) = 3402 x^{4} {(3 x^{3} + 7)}^{5} + 126 ({(3 x^{3} + 7)}^{6} x)$

Step 2.8.4

Factor $126 x {(3 x^{3} + 7)}^{5}$ out of $3402 x^{4} {(3 x^{3} + 7)}^{5} + 126 {(3 x^{3} + 7)}^{6} x$ .

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Step 2.8.4.1

Factor $126 x {(3 x^{3} + 7)}^{5}$ out of $3402 x^{4} {(3 x^{3} + 7)}^{5}$ .

$f'' (x) = 126 x {(3 x^{3} + 7)}^{5} (27 x^{3}) + 126 {(3 x^{3} + 7)}^{6} x$

Step 2.8.4.2

Factor $126 x {(3 x^{3} + 7)}^{5}$ out of $126 {(3 x^{3} + 7)}^{6} x$ .

$f'' (x) = 126 x {(3 x^{3} + 7)}^{5} (27 x^{3}) + 126 x {(3 x^{3} + 7)}^{5} (3 x^{3} + 7)$

Step 2.8.4.3

Factor $126 x {(3 x^{3} + 7)}^{5}$ out of $126 x {(3 x^{3} + 7)}^{5} (27 x^{3}) + 126 x {(3 x^{3} + 7)}^{5} (3 x^{3} + 7)$ .

$f'' (x) = 126 x {(3 x^{3} + 7)}^{5} (27 x^{3} + 3 x^{3} + 7)$

Step 2.8.5

Add $27 x^{3}$ and $3 x^{3}$ .

$f'' (x) = 126 x {(3 x^{3} + 7)}^{5} (30 x^{3} + 7)$

Step 3

Find the third derivative.

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Step 3.1

Since $126$ is constant with respect to $x$ , the derivative of $126 x {(3 x^{3} + 7)}^{5} (30 x^{3} + 7)$ with respect to $x$ is $126 \frac{d}{d x} [x {(3 x^{3} + 7)}^{5} (30 x^{3} + 7)]$ .

$f''' (x) = 126 \frac{d}{d x} (x {(3 x^{3} + 7)}^{5} (30 x^{3} + 7))$

Step 3.2

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x {(3 x^{3} + 7)}^{5}$ and $g (x) = 30 x^{3} + 7$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} \frac{d}{d x} (30 x^{3} + 7) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3

Differentiate.

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Step 3.3.1

By the Sum Rule, the derivative of $30 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [30 x^{3}] + \frac{d}{d x} [7]$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (\frac{d}{d x} (30 x^{3}) + \frac{d}{d x} (7)) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3.2

Since $30$ is constant with respect to $x$ , the derivative of $30 x^{3}$ with respect to $x$ is $30 \frac{d}{d x} [x^{3}]$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (30 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7)) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (30 (3 x^{2}) + \frac{d}{d x} (7)) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3.4

Multiply $3$ by $30$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (90 x^{2} + \frac{d}{d x} (7)) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (90 x^{2} + 0) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.3.6

Add $90 x^{2}$ and $0$ .

$f''' (x) = 126 (x {(3 x^{3} + 7)}^{5} (90 x^{2}) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.4

Raise $x$ to the power of $1$ .

$f''' (x) = 126 (x^{2} x {(3 x^{3} + 7)}^{5} \cdot 90 + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.5

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f''' (x) = 126 (x^{2 + 1} {(3 x^{3} + 7)}^{5} \cdot 90 + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.6

Simplify the expression.

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Step 3.6.1

Add $2$ and $1$ .

$f''' (x) = 126 (x^{3} {(3 x^{3} + 7)}^{5} \cdot 90 + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.6.2

Move $90$ to the left of $x^{3} {(3 x^{3} + 7)}^{5}$ .

$f''' (x) = 126 (90 \cdot (x^{3} {(3 x^{3} + 7)}^{5}) + (30 x^{3} + 7) \frac{d}{d x} (x {(3 x^{3} + 7)}^{5}))$

Step 3.7

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x$ and $g (x) = {(3 x^{3} + 7)}^{5}$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x \frac{d}{d x} ({(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.8

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{5}$ and $g (x) = 3 x^{3} + 7$ .

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Step 3.8.1

To apply the Chain Rule, set $u$ as $3 x^{3} + 7$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (\frac{d}{d u} (u^{5}) \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.8.2

Differentiate using the Power Rule which states that $\frac{d}{d u} [u^{n}]$ is $n u^{n - 1}$ where $n = 5$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 u^{4} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.8.3

Replace all occurrences of $u$ with $3 x^{3} + 7$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9

Differentiate.

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Step 3.9.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (3 (3 x^{2}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.4

Multiply $3$ by $3$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (9 x^{2} + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (9 x^{2} + 0)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.6

Simplify the expression.

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Step 3.9.6.1

Add $9 x^{2}$ and $0$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (5 {(3 x^{3} + 7)}^{4} (9 x^{2})) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.9.6.2

Multiply $9$ by $5$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x (45 {(3 x^{3} + 7)}^{4} x^{2}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.10

Raise $x$ to the power of $1$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{2} x (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.11

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{2 + 1} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.12

Add $2$ and $1$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x)))$

Step 3.13

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \cdot 1))$

Step 3.14

Multiply ${(3 x^{3} + 7)}^{5}$ by $1$ .

$f''' (x) = 126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}))$

Step 4

Find the fourth derivative.

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Step 4.1

Differentiate.

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Step 4.1.1

Since $126$ is constant with respect to $x$ , the derivative of $126 (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}))$ with respect to $x$ is $126 \frac{d}{d x} [90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})]$ .

$f^{4} (x) = 126 \frac{d}{d x} (90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}))$

Step 4.1.2

By the Sum Rule, the derivative of $90 x^{3} {(3 x^{3} + 7)}^{5} + (30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})$ with respect to $x$ is $\frac{d}{d x} [90 x^{3} {(3 x^{3} + 7)}^{5}] + \frac{d}{d x} [(30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})]$ .

$f^{4} (x) = 126 (\frac{d}{d x} (90 x^{3} {(3 x^{3} + 7)}^{5}) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.1.3

Since $90$ is constant with respect to $x$ , the derivative of $90 x^{3} {(3 x^{3} + 7)}^{5}$ with respect to $x$ is $90 \frac{d}{d x} [x^{3} {(3 x^{3} + 7)}^{5}]$ .

$f^{4} (x) = 126 (90 \frac{d}{d x} (x^{3} {(3 x^{3} + 7)}^{5}) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.2

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x^{3}$ and $g (x) = {(3 x^{3} + 7)}^{5}$ .

$f^{4} (x) = 126 (90 (x^{3} \frac{d}{d x} ({(3 x^{3} + 7)}^{5}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.3

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{5}$ and $g (x) = 3 x^{3} + 7$ .

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Step 4.3.1

To apply the Chain Rule, set $u_{1}$ as $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{3} (\frac{d}{d u (1)} ({u_{1}}^{5}) \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.3.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{1}} [{u_{1}}^{n}]$ is $n {u_{1}}^{n - 1}$ where $n = 5$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {u_{1}}^{4} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.3.3

Replace all occurrences of $u_{1}$ with $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4

Differentiate.

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Step 4.4.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (3 (3 x^{2}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.4

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (9 x^{2} + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (9 x^{2} + 0)) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.6

Simplify the expression.

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Step 4.4.6.1

Add $9 x^{2}$ and $0$ .

$f^{4} (x) = 126 (90 (x^{3} (5 {(3 x^{3} + 7)}^{4} (9 x^{2})) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.4.6.2

Multiply $9$ by $5$ .

$f^{4} (x) = 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4} x^{2}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.5

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.5.1

Move $x^{2}$ .

$f^{4} (x) = 126 (90 (x^{2} x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (90 (x^{2 + 3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.5.3

Add $2$ and $3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.6

Differentiate using the Power Rule.

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Step 4.6.1

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5} (3 x^{2})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.6.2

Move $3$ to the left of ${(3 x^{3} + 7)}^{5}$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 \cdot ({(3 x^{3} + 7)}^{5} x^{2})) + \frac{d}{d x} ((30 x^{3} + 7) (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5})))$

Step 4.7

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = 30 x^{3} + 7$ and $g (x) = x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) \frac{d}{d x} (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.8

Differentiate.

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Step 4.8.1

By the Sum Rule, the derivative of $x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}$ with respect to $x$ is $\frac{d}{d x} [x^{3} (45 {(3 x^{3} + 7)}^{4})] + \frac{d}{d x} [{(3 x^{3} + 7)}^{5}]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (\frac{d}{d x} (x^{3} (45 {(3 x^{3} + 7)}^{4})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.8.2

Since $45$ is constant with respect to $x$ , the derivative of $x^{3} (45 {(3 x^{3} + 7)}^{4})$ with respect to $x$ is $45 \frac{d}{d x} [x^{3} ({(3 x^{3} + 7)}^{4})]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 \frac{d}{d x} (x^{3} ({(3 x^{3} + 7)}^{4})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.9

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} \frac{d}{d x} ({(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.10

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{4}$ and $g (x) = 3 x^{3} + 7$ .

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Step 4.10.1

To apply the Chain Rule, set $u_{2}$ as $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (\frac{d}{d u (2)} ({u_{2}}^{4}) \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.10.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{2}} [{u_{2}}^{n}]$ is $n {u_{2}}^{n - 1}$ where $n = 4$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {u_{2}}^{3} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.10.3

Replace all occurrences of $u_{2}$ with $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} \frac{d}{d x} (3 x^{3} + 7)) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11

Differentiate.

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Step 4.11.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (3 (3 x^{2}) + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.4

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (9 x^{2} + \frac{d}{d x} (7))) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (9 x^{2} + 0)) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.6

Simplify the expression.

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Step 4.11.6.1

Add $9 x^{2}$ and $0$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (4 {(3 x^{3} + 7)}^{3} (9 x^{2})) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.11.6.2

Multiply $9$ by $4$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{3} (36 {(3 x^{3} + 7)}^{3} x^{2}) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.12

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.12.1

Move $x^{2}$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{2} x^{3} (36 {(3 x^{3} + 7)}^{3}) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.12.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{2 + 3} (36 {(3 x^{3} + 7)}^{3}) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.12.3

Add $2$ and $3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + {(3 x^{3} + 7)}^{4} \frac{d}{d x} (x^{3})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.13

Differentiate using the Power Rule.

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Step 4.13.1

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + {(3 x^{3} + 7)}^{4} (3 x^{2})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.13.2

Move $3$ to the left of ${(3 x^{3} + 7)}^{4}$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 \cdot ({(3 x^{3} + 7)}^{4} x^{2})) + \frac{d}{d x} ({(3 x^{3} + 7)}^{5})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.14

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{5}$ and $g (x) = 3 x^{3} + 7$ .

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Step 4.14.1

To apply the Chain Rule, set $u_{3}$ as $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + \frac{d}{d u (3)} ({u_{3}}^{5}) \frac{d}{d x} (3 x^{3} + 7)) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.14.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{3}} [{u_{3}}^{n}]$ is $n {u_{3}}^{n - 1}$ where $n = 5$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {u_{3}}^{4} \frac{d}{d x} (3 x^{3} + 7)) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.14.3

Replace all occurrences of $u_{3}$ with $3 x^{3} + 7$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} \frac{d}{d x} (3 x^{3} + 7)) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15

Differentiate.

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Step 4.15.1

By the Sum Rule, the derivative of $3 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [7]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (\frac{d}{d x} (3 x^{3}) + \frac{d}{d x} (7))) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (3 \frac{d}{d x} (x^{3}) + \frac{d}{d x} (7))) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (3 (3 x^{2}) + \frac{d}{d x} (7))) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.4

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (9 x^{2} + \frac{d}{d x} (7))) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.5

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (9 x^{2} + 0)) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.6

Simplify the expression.

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Step 4.15.6.1

Add $9 x^{2}$ and $0$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 5 {(3 x^{3} + 7)}^{4} (9 x^{2})) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.6.2

Multiply $9$ by $5$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2}) + (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) \frac{d}{d x} (30 x^{3} + 7))$

Step 4.15.7

By the Sum Rule, the derivative of $30 x^{3} + 7$ with respect to $x$ is $\frac{d}{d x} [30 x^{3}] + \frac{d}{d x} [7]$ .

Step 4.15.8

Since $30$ is constant with respect to $x$ , the derivative of $30 x^{3}$ with respect to $x$ is $30 \frac{d}{d x} [x^{3}]$ .

Step 4.15.9

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

Step 4.15.10

Multiply $3$ by $30$ .

Step 4.15.11

Since $7$ is constant with respect to $x$ , the derivative of $7$ with respect to $x$ is $0$ .

Step 4.15.12

Simplify the expression.

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Step 4.15.12.1

Add $90 x^{2}$ and $0$ .

Step 4.15.12.2

Move $90$ to the left of $x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}$ .

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}) + 3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2}) + 90 \cdot ((x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) x^{2}))$

Step 4.16

Simplify.

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Step 4.16.1

Apply the distributive property.

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4})) + 90 (3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3}) + 3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2}) + 90 (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) x^{2})$

Step 4.16.2

Apply the distributive property.

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4})) + 90 (3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2}) + 90 (x^{3} (45 {(3 x^{3} + 7)}^{4}) + {(3 x^{3} + 7)}^{5}) x^{2})$

Step 4.16.3

Apply the distributive property.

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4})) + 90 (3 {(3 x^{3} + 7)}^{5} x^{2}) + (30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2}) + (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) + 90 {(3 x^{3} + 7)}^{5}) x^{2})$

Step 4.16.4

Apply the distributive property.

Step 4.16.5

Apply the distributive property.

$f^{4} (x) = 126 (90 (x^{5} (45 {(3 x^{3} + 7)}^{4}))) + 126 (90 (3 {(3 x^{3} + 7)}^{5} x^{2})) + 126 ((30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.6

Multiply $45$ by $90$ .

$f^{4} (x) = 126 (4050 (x^{5} ({(3 x^{3} + 7)}^{4}))) + 126 (90 (3 {(3 x^{3} + 7)}^{5} x^{2})) + 126 ((30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.7

Multiply $4050$ by $126$ .

$f^{4} (x) = 510300 (x^{5} {(3 x^{3} + 7)}^{4}) + 126 (90 (3 {(3 x^{3} + 7)}^{5} x^{2})) + 126 ((30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.8

Multiply $3$ by $90$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 126 (270 ({(3 x^{3} + 7)}^{5} x^{2})) + 126 ((30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.9

Multiply $270$ by $126$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 ({(3 x^{3} + 7)}^{5} x^{2}) + 126 ((30 x^{3} + 7) (45 (x^{5} (36 {(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.10

Multiply $36$ by $45$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 ((30 x^{3} + 7) (1620 (x^{5} ({(3 x^{3} + 7)}^{3})) + 45 (3 {(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.11

Multiply $3$ by $45$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 ((30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 135 ({(3 x^{3} + 7)}^{4} x^{2}) + 45 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.12

Add $135 {(3 x^{3} + 7)}^{4} x^{2}$ and $45 {(3 x^{3} + 7)}^{4} x^{2}$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 ((30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})) + 126 (90 (x^{3} (45 {(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.13

Multiply $45$ by $90$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 126 (4050 (x^{3} ({(3 x^{3} + 7)}^{4})) x^{2}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.14

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.16.14.1

Move $x^{2}$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 126 (4050 (x^{2} x^{3}) {(3 x^{3} + 7)}^{4}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.14.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 126 (4050 x^{2 + 3} {(3 x^{3} + 7)}^{4}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.14.3

Add $2$ and $3$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 126 (4050 x^{5} {(3 x^{3} + 7)}^{4}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.15

Multiply $4050$ by $126$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 510300 (x^{5} {(3 x^{3} + 7)}^{4}) + 126 (90 {(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.16

Multiply $90$ by $126$ .

$f^{4} (x) = 510300 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 510300 x^{5} {(3 x^{3} + 7)}^{4} + 11340 ({(3 x^{3} + 7)}^{5} x^{2})$

Step 4.16.17

Add $510300 x^{5} {(3 x^{3} + 7)}^{4}$ and $510300 x^{5} {(3 x^{3} + 7)}^{4}$ .

$f^{4} (x) = 1020600 x^{5} {(3 x^{3} + 7)}^{4} + 34020 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}) + 11340 {(3 x^{3} + 7)}^{5} x^{2}$

Step 4.16.18

Add $34020 {(3 x^{3} + 7)}^{5} x^{2}$ and $11340 {(3 x^{3} + 7)}^{5} x^{2}$ .

$f^{4} (x) = 1020600 x^{5} {(3 x^{3} + 7)}^{4} + 45360 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})$

Step 4.16.19

Factor $126$ out of $1020600 x^{5} {(3 x^{3} + 7)}^{4} + 45360 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})$ .

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Step 4.16.19.1

Factor $126$ out of $1020600 x^{5} {(3 x^{3} + 7)}^{4}$ .

$f^{4} (x) = 126 (8100 x^{5} {(3 x^{3} + 7)}^{4}) + 45360 {(3 x^{3} + 7)}^{5} x^{2} + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})$

Step 4.16.19.2

Factor $126$ out of $45360 {(3 x^{3} + 7)}^{5} x^{2}$ .

$f^{4} (x) = 126 (8100 x^{5} {(3 x^{3} + 7)}^{4}) + 126 (360 {(3 x^{3} + 7)}^{5} x^{2}) + 126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})$

Step 4.16.19.3

Factor $126$ out of $126 (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2})$ .

$f^{4} (x) = 126 (8100 x^{5} {(3 x^{3} + 7)}^{4}) + 126 (360 {(3 x^{3} + 7)}^{5} x^{2}) + 126 ((30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.19.4

Factor $126$ out of $126 (8100 x^{5} {(3 x^{3} + 7)}^{4}) + 126 (360 {(3 x^{3} + 7)}^{5} x^{2})$ .

$f^{4} (x) = 126 (8100 x^{5} {(3 x^{3} + 7)}^{4} + 360 {(3 x^{3} + 7)}^{5} x^{2}) + 126 ((30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.19.5

Factor $126$ out of $126 (8100 x^{5} {(3 x^{3} + 7)}^{4} + 360 {(3 x^{3} + 7)}^{5} x^{2}) + 126 ((30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$ .

$f^{4} (x) = 126 (8100 x^{5} {(3 x^{3} + 7)}^{4} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20

Simplify each term.

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Step 4.16.20.1

Use the Binomial Theorem.

$f^{4} (x) = 126 (8100 x^{5} ({(3 x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2

Simplify each term.

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Step 4.16.20.2.1

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (8100 x^{5} (3^{4} {(x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.2

Raise $3$ to the power of $4$ .

$f^{4} (x) = 126 (8100 x^{5} (81 {(x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.3

Multiply the exponents in ${(x^{3})}^{4}$ .

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Step 4.16.20.2.3.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{3 \cdot 4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.3.2

Multiply $3$ by $4$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.4

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 4 (3^{3} {(x^{3})}^{3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.5

Raise $3$ to the power of $3$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 4 (27 {(x^{3})}^{3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.6

Multiply the exponents in ${(x^{3})}^{3}$ .

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Step 4.16.20.2.6.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 4 (27 x^{3 \cdot 3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.6.2

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 4 (27 x^{9}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.7

Multiply $27$ by $4$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 108 x^{9} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.8

Multiply $7$ by $108$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.9

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 6 (3^{2} {(x^{3})}^{2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.10

Raise $3$ to the power of $2$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 6 (9 {(x^{3})}^{2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.11

Multiply the exponents in ${(x^{3})}^{2}$ .

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Step 4.16.20.2.11.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 6 (9 x^{3 \cdot 2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.11.2

Multiply $3$ by $2$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 6 (9 x^{6}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.12

Multiply $9$ by $6$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 54 x^{6} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.13

Raise $7$ to the power of $2$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 54 x^{6} \cdot 49 + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.14

Multiply $49$ by $54$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.15

Multiply $3$ by $4$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 2646 x^{6} + 12 x^{3} \cdot 7^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.16

Raise $7$ to the power of $3$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 2646 x^{6} + 12 x^{3} \cdot 343 + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.17

Multiply $343$ by $12$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4116 x^{3} + 7^{4}) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.2.18

Raise $7$ to the power of $4$ .

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4116 x^{3} + 2401) + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.3

Apply the distributive property.

$f^{4} (x) = 126 (8100 x^{5} (81 x^{12}) + 8100 x^{5} (756 x^{9}) + 8100 x^{5} (2646 x^{6}) + 8100 x^{5} (4116 x^{3}) + 8100 x^{5} \cdot 2401 + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.4

Simplify.

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Step 4.16.20.4.1

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (8100 \cdot (81 x^{5} x^{12}) + 8100 x^{5} (756 x^{9}) + 8100 x^{5} (2646 x^{6}) + 8100 x^{5} (4116 x^{3}) + 8100 x^{5} \cdot 2401 + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.4.2

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (8100 \cdot (81 x^{5} x^{12}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 x^{5} (2646 x^{6}) + 8100 x^{5} (4116 x^{3}) + 8100 x^{5} \cdot 2401 + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.4.3

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (8100 \cdot (81 x^{5} x^{12}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 x^{5} (4116 x^{3}) + 8100 x^{5} \cdot 2401 + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.4.4

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (8100 \cdot (81 x^{5} x^{12}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 8100 x^{5} \cdot 2401 + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.4.5

Multiply $2401$ by $8100$ .

$f^{4} (x) = 126 (8100 \cdot (81 x^{5} x^{12}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5

Simplify each term.

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Step 4.16.20.5.1

Multiply $x^{5}$ by $x^{12}$ by adding the exponents.

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Step 4.16.20.5.1.1

Move $x^{12}$ .

$f^{4} (x) = 126 (8100 \cdot (81 (x^{12} x^{5})) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (8100 \cdot (81 x^{12 + 5}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.1.3

Add $12$ and $5$ .

$f^{4} (x) = 126 (8100 \cdot (81 x^{17}) + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.2

Multiply $8100$ by $81$ .

$f^{4} (x) = 126 (656100 x^{17} + 8100 \cdot (756 x^{5} x^{9}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.3

Multiply $x^{5}$ by $x^{9}$ by adding the exponents.

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Step 4.16.20.5.3.1

Move $x^{9}$ .

$f^{4} (x) = 126 (656100 x^{17} + 8100 \cdot (756 (x^{9} x^{5})) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.3.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 8100 \cdot (756 x^{9 + 5}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.3.3

Add $9$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 8100 \cdot (756 x^{14}) + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.4

Multiply $8100$ by $756$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 8100 \cdot (2646 x^{5} x^{6}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.5

Multiply $x^{5}$ by $x^{6}$ by adding the exponents.

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Step 4.16.20.5.5.1

Move $x^{6}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 8100 \cdot (2646 (x^{6} x^{5})) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 8100 \cdot (2646 x^{6 + 5}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.5.3

Add $6$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 8100 \cdot (2646 x^{11}) + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.6

Multiply $8100$ by $2646$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 8100 \cdot (4116 x^{5} x^{3}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.7

Multiply $x^{5}$ by $x^{3}$ by adding the exponents.

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Step 4.16.20.5.7.1

Move $x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 8100 \cdot (4116 (x^{3} x^{5})) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.7.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 8100 \cdot (4116 x^{3 + 5}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.7.3

Add $3$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 8100 \cdot (4116 x^{8}) + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.5.8

Multiply $8100$ by $4116$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 {(3 x^{3} + 7)}^{5} x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.6

Use the Binomial Theorem.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 ({(3 x^{3})}^{5} + 5 {(3 x^{3})}^{4} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7

Simplify each term.

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Step 4.16.20.7.1

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (3^{5} {(x^{3})}^{5} + 5 {(3 x^{3})}^{4} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.2

Raise $3$ to the power of $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 {(x^{3})}^{5} + 5 {(3 x^{3})}^{4} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.3

Multiply the exponents in ${(x^{3})}^{5}$ .

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Step 4.16.20.7.3.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{3 \cdot 5} + 5 {(3 x^{3})}^{4} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.3.2

Multiply $3$ by $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 5 {(3 x^{3})}^{4} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.4

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 5 (3^{4} {(x^{3})}^{4}) \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.5

Raise $3$ to the power of $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 5 (81 {(x^{3})}^{4}) \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.6

Multiply the exponents in ${(x^{3})}^{4}$ .

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Step 4.16.20.7.6.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 5 (81 x^{3 \cdot 4}) \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.6.2

Multiply $3$ by $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 5 (81 x^{12}) \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.7

Multiply $81$ by $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 405 x^{12} \cdot 7 + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.8

Multiply $7$ by $405$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 10 {(3 x^{3})}^{3} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.9

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 10 (3^{3} {(x^{3})}^{3}) \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.10

Raise $3$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 10 (27 {(x^{3})}^{3}) \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.11

Multiply the exponents in ${(x^{3})}^{3}$ .

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Step 4.16.20.7.11.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 10 (27 x^{3 \cdot 3}) \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.11.2

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 10 (27 x^{9}) \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.12

Multiply $27$ by $10$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 270 x^{9} \cdot 7^{2} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.13

Raise $7$ to the power of $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 270 x^{9} \cdot 49 + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.14

Multiply $49$ by $270$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 10 {(3 x^{3})}^{2} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.15

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 10 (3^{2} {(x^{3})}^{2}) \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.16

Raise $3$ to the power of $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 10 (9 {(x^{3})}^{2}) \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.17

Multiply the exponents in ${(x^{3})}^{2}$ .

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Step 4.16.20.7.17.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 10 (9 x^{3 \cdot 2}) \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.17.2

Multiply $3$ by $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 10 (9 x^{6}) \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.18

Multiply $9$ by $10$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 90 x^{6} \cdot 7^{3} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.19

Raise $7$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 90 x^{6} \cdot 343 + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.20

Multiply $343$ by $90$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 30870 x^{6} + 5 (3 x^{3}) \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.21

Multiply $3$ by $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 30870 x^{6} + 15 x^{3} \cdot 7^{4} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.22

Raise $7$ to the power of $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 30870 x^{6} + 15 x^{3} \cdot 2401 + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.23

Multiply $2401$ by $15$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 30870 x^{6} + 36015 x^{3} + 7^{5}) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.7.24

Raise $7$ to the power of $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 360 (243 x^{15} + 2835 x^{12} + 13230 x^{9} + 30870 x^{6} + 36015 x^{3} + 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.8

Apply the distributive property.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (360 (243 x^{15}) + 360 (2835 x^{12}) + 360 (13230 x^{9}) + 360 (30870 x^{6}) + 360 (36015 x^{3}) + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9

Simplify.

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Step 4.16.20.9.1

Multiply $243$ by $360$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 360 (2835 x^{12}) + 360 (13230 x^{9}) + 360 (30870 x^{6}) + 360 (36015 x^{3}) + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9.2

Multiply $2835$ by $360$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 1020600 x^{12} + 360 (13230 x^{9}) + 360 (30870 x^{6}) + 360 (36015 x^{3}) + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9.3

Multiply $13230$ by $360$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 1020600 x^{12} + 4762800 x^{9} + 360 (30870 x^{6}) + 360 (36015 x^{3}) + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9.4

Multiply $30870$ by $360$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 1020600 x^{12} + 4762800 x^{9} + 11113200 x^{6} + 360 (36015 x^{3}) + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9.5

Multiply $36015$ by $360$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 1020600 x^{12} + 4762800 x^{9} + 11113200 x^{6} + 12965400 x^{3} + 360 \cdot 16807) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.9.6

Multiply $360$ by $16807$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + (87480 x^{15} + 1020600 x^{12} + 4762800 x^{9} + 11113200 x^{6} + 12965400 x^{3} + 6050520) x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.10

Apply the distributive property.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{15} x^{2} + 1020600 x^{12} x^{2} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11

Simplify.

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Step 4.16.20.11.1

Multiply $x^{15}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.11.1.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 (x^{2} x^{15}) + 1020600 x^{12} x^{2} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{2 + 15} + 1020600 x^{12} x^{2} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.1.3

Add $2$ and $15$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{12} x^{2} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.2

Multiply $x^{12}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.11.2.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 (x^{2} x^{12}) + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{2 + 12} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.2.3

Add $2$ and $12$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{9} x^{2} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.3

Multiply $x^{9}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.11.3.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 (x^{2} x^{9}) + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.3.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{2 + 9} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.3.3

Add $2$ and $9$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{6} x^{2} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.4

Multiply $x^{6}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.11.4.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 (x^{2} x^{6}) + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.4.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{2 + 6} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.4.3

Add $2$ and $6$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{3} x^{2} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.5

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.11.5.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 (x^{2} x^{3}) + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{2 + 3} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} {(3 x^{3} + 7)}^{3} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.11.5.3

Add $2$ and $3$ .

Step 4.16.20.12

Simplify each term.

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Step 4.16.20.12.1

Use the Binomial Theorem.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} ({(3 x^{3})}^{3} + 3 {(3 x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2

Simplify each term.

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Step 4.16.20.12.2.1

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (3^{3} {(x^{3})}^{3} + 3 {(3 x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.2

Raise $3$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 {(x^{3})}^{3} + 3 {(3 x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.3

Multiply the exponents in ${(x^{3})}^{3}$ .

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Step 4.16.20.12.2.3.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{3 \cdot 3} + 3 {(3 x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.3.2

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3 {(3 x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.4

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3 (3^{2} {(x^{3})}^{2}) \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.5

Multiply $3$ by $3^{2}$ by adding the exponents.

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Step 4.16.20.12.2.5.1

Move $3^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3^{2} \cdot (3 {(x^{3})}^{2}) \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.5.2

Multiply $3^{2}$ by $3$ .

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Step 4.16.20.12.2.5.2.1

Raise $3$ to the power of $1$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3^{2} \cdot (3 {(x^{3})}^{2}) \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.5.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3^{2 + 1} {(x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.5.3

Add $2$ and $1$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 3^{3} {(x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.6

Raise $3$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 27 {(x^{3})}^{2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.7

Multiply the exponents in ${(x^{3})}^{2}$ .

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Step 4.16.20.12.2.7.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 27 x^{3 \cdot 2} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.7.2

Multiply $3$ by $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 27 x^{6} \cdot 7 + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.8

Multiply $7$ by $27$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 189 x^{6} + 3 (3 x^{3}) \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.9

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 189 x^{6} + 9 x^{3} \cdot 7^{2} + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.10

Raise $7$ to the power of $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9} + 189 x^{6} + 9 x^{3} \cdot 49 + 7^{3}) + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.2.11

Multiply $49$ by $9$ .

Step 4.16.20.12.2.12

Raise $7$ to the power of $3$ .

Step 4.16.20.12.3

Apply the distributive property.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 x^{5} (27 x^{9}) + 1620 x^{5} (189 x^{6}) + 1620 x^{5} (441 x^{3}) + 1620 x^{5} \cdot 343 + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.4

Simplify.

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Step 4.16.20.12.4.1

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{5} x^{9}) + 1620 x^{5} (189 x^{6}) + 1620 x^{5} (441 x^{3}) + 1620 x^{5} \cdot 343 + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.4.2

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{5} x^{9}) + 1620 \cdot (189 x^{5} x^{6}) + 1620 x^{5} (441 x^{3}) + 1620 x^{5} \cdot 343 + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.4.3

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{5} x^{9}) + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 1620 x^{5} \cdot 343 + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.4.4

Multiply $343$ by $1620$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{5} x^{9}) + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5

Simplify each term.

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Step 4.16.20.12.5.1

Multiply $x^{5}$ by $x^{9}$ by adding the exponents.

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Step 4.16.20.12.5.1.1

Move $x^{9}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 (x^{9} x^{5})) + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{9 + 5}) + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.1.3

Add $9$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (1620 \cdot (27 x^{14}) + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.2

Multiply $1620$ by $27$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 1620 \cdot (189 x^{5} x^{6}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.3

Multiply $x^{5}$ by $x^{6}$ by adding the exponents.

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Step 4.16.20.12.5.3.1

Move $x^{6}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 1620 \cdot (189 (x^{6} x^{5})) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.3.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 1620 \cdot (189 x^{6 + 5}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.3.3

Add $6$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 1620 \cdot (189 x^{11}) + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.4

Multiply $1620$ by $189$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 1620 \cdot (441 x^{5} x^{3}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.5

Multiply $x^{5}$ by $x^{3}$ by adding the exponents.

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Step 4.16.20.12.5.5.1

Move $x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 1620 \cdot (441 (x^{3} x^{5})) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 1620 \cdot (441 x^{3 + 5}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.5.3

Add $3$ and $5$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 1620 \cdot (441 x^{8}) + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.5.6

Multiply $1620$ by $441$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 {(3 x^{3} + 7)}^{4} x^{2}))$

Step 4.16.20.12.6

Use the Binomial Theorem.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 ({(3 x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7

Simplify each term.

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Step 4.16.20.12.7.1

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (3^{4} {(x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.2

Raise $3$ to the power of $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 {(x^{3})}^{4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.3

Multiply the exponents in ${(x^{3})}^{4}$ .

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Step 4.16.20.12.7.3.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{3 \cdot 4} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.3.2

Multiply $3$ by $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 4 {(3 x^{3})}^{3} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.4

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 4 (3^{3} {(x^{3})}^{3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.5

Raise $3$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 4 (27 {(x^{3})}^{3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.6

Multiply the exponents in ${(x^{3})}^{3}$ .

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Step 4.16.20.12.7.6.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 4 (27 x^{3 \cdot 3}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.6.2

Multiply $3$ by $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 4 (27 x^{9}) \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.7

Multiply $27$ by $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 108 x^{9} \cdot 7 + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.8

Multiply $7$ by $108$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 6 {(3 x^{3})}^{2} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.9

Apply the product rule to $3 x^{3}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 6 (3^{2} {(x^{3})}^{2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.10

Raise $3$ to the power of $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 6 (9 {(x^{3})}^{2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.11

Multiply the exponents in ${(x^{3})}^{2}$ .

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Step 4.16.20.12.7.11.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 6 (9 x^{3 \cdot 2}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.11.2

Multiply $3$ by $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 6 (9 x^{6}) \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.12

Multiply $9$ by $6$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 54 x^{6} \cdot 7^{2} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.13

Raise $7$ to the power of $2$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 54 x^{6} \cdot 49 + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.14

Multiply $49$ by $54$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4 (3 x^{3}) \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.15

Multiply $3$ by $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 2646 x^{6} + 12 x^{3} \cdot 7^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.16

Raise $7$ to the power of $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 2646 x^{6} + 12 x^{3} \cdot 343 + 7^{4}) x^{2}))$

Step 4.16.20.12.7.17

Multiply $343$ by $12$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4116 x^{3} + 7^{4}) x^{2}))$

Step 4.16.20.12.7.18

Raise $7$ to the power of $4$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 180 (81 x^{12} + 756 x^{9} + 2646 x^{6} + 4116 x^{3} + 2401) x^{2}))$

Step 4.16.20.12.8

Apply the distributive property.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (180 (81 x^{12}) + 180 (756 x^{9}) + 180 (2646 x^{6}) + 180 (4116 x^{3}) + 180 \cdot 2401) x^{2}))$

Step 4.16.20.12.9

Simplify.

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Step 4.16.20.12.9.1

Multiply $81$ by $180$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (14580 x^{12} + 180 (756 x^{9}) + 180 (2646 x^{6}) + 180 (4116 x^{3}) + 180 \cdot 2401) x^{2}))$

Step 4.16.20.12.9.2

Multiply $756$ by $180$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (14580 x^{12} + 136080 x^{9} + 180 (2646 x^{6}) + 180 (4116 x^{3}) + 180 \cdot 2401) x^{2}))$

Step 4.16.20.12.9.3

Multiply $2646$ by $180$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (14580 x^{12} + 136080 x^{9} + 476280 x^{6} + 180 (4116 x^{3}) + 180 \cdot 2401) x^{2}))$

Step 4.16.20.12.9.4

Multiply $4116$ by $180$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (14580 x^{12} + 136080 x^{9} + 476280 x^{6} + 740880 x^{3} + 180 \cdot 2401) x^{2}))$

Step 4.16.20.12.9.5

Multiply $180$ by $2401$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + (14580 x^{12} + 136080 x^{9} + 476280 x^{6} + 740880 x^{3} + 432180) x^{2}))$

Step 4.16.20.12.10

Apply the distributive property.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{12} x^{2} + 136080 x^{9} x^{2} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11

Simplify.

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Step 4.16.20.12.11.1

Multiply $x^{12}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.12.11.1.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 (x^{2} x^{12}) + 136080 x^{9} x^{2} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{2 + 12} + 136080 x^{9} x^{2} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.1.3

Add $2$ and $12$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{9} x^{2} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.2

Multiply $x^{9}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.12.11.2.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 (x^{2} x^{9}) + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{2 + 9} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.2.3

Add $2$ and $9$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{6} x^{2} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.3

Multiply $x^{6}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.12.11.3.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 (x^{2} x^{6}) + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.3.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{2 + 6} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.3.3

Add $2$ and $6$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{8} + 740880 x^{3} x^{2} + 432180 x^{2}))$

Step 4.16.20.12.11.4

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.12.11.4.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{8} + 740880 (x^{2} x^{3}) + 432180 x^{2}))$

Step 4.16.20.12.11.4.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{8} + 740880 x^{2 + 3} + 432180 x^{2}))$

Step 4.16.20.12.11.4.3

Add $2$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (43740 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 14580 x^{14} + 136080 x^{11} + 476280 x^{8} + 740880 x^{5} + 432180 x^{2}))$

Step 4.16.20.13

Add $43740 x^{14}$ and $14580 x^{14}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (58320 x^{14} + 306180 x^{11} + 714420 x^{8} + 555660 x^{5} + 136080 x^{11} + 476280 x^{8} + 740880 x^{5} + 432180 x^{2}))$

Step 4.16.20.14

Add $306180 x^{11}$ and $136080 x^{11}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (58320 x^{14} + 442260 x^{11} + 714420 x^{8} + 555660 x^{5} + 476280 x^{8} + 740880 x^{5} + 432180 x^{2}))$

Step 4.16.20.15

Add $714420 x^{8}$ and $476280 x^{8}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + (30 x^{3} + 7) (58320 x^{14} + 442260 x^{11} + 1190700 x^{8} + 555660 x^{5} + 740880 x^{5} + 432180 x^{2}))$

Step 4.16.20.16

Add $555660 x^{5}$ and $740880 x^{5}$ .

Step 4.16.20.17

Expand $(30 x^{3} + 7) (58320 x^{14} + 442260 x^{11} + 1190700 x^{8} + 1296540 x^{5} + 432180 x^{2})$ by multiplying each term in the first expression by each term in the second expression.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 30 x^{3} (58320 x^{14}) + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18

Simplify each term.

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Step 4.16.20.18.1

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 30 \cdot (58320 x^{3} x^{14}) + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.2

Multiply $x^{3}$ by $x^{14}$ by adding the exponents.

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Step 4.16.20.18.2.1

Move $x^{14}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 30 \cdot (58320 (x^{14} x^{3})) + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 30 \cdot (58320 x^{14 + 3}) + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.2.3

Add $14$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 30 \cdot (58320 x^{17}) + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.3

Multiply $30$ by $58320$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 30 x^{3} (442260 x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.4

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 30 \cdot (442260 x^{3} x^{11}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.5

Multiply $x^{3}$ by $x^{11}$ by adding the exponents.

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Step 4.16.20.18.5.1

Move $x^{11}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 30 \cdot (442260 (x^{11} x^{3})) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.5.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 30 \cdot (442260 x^{11 + 3}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.5.3

Add $11$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 30 \cdot (442260 x^{14}) + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.6

Multiply $30$ by $442260$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 30 x^{3} (1190700 x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.7

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 30 \cdot (1190700 x^{3} x^{8}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.8

Multiply $x^{3}$ by $x^{8}$ by adding the exponents.

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Step 4.16.20.18.8.1

Move $x^{8}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 30 \cdot (1190700 (x^{8} x^{3})) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.8.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 30 \cdot (1190700 x^{8 + 3}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.8.3

Add $8$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 30 \cdot (1190700 x^{11}) + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.9

Multiply $30$ by $1190700$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 30 x^{3} (1296540 x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.10

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 30 \cdot (1296540 x^{3} x^{5}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.11

Multiply $x^{3}$ by $x^{5}$ by adding the exponents.

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Step 4.16.20.18.11.1

Move $x^{5}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 30 \cdot (1296540 (x^{5} x^{3})) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.11.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 30 \cdot (1296540 x^{5 + 3}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.11.3

Add $5$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 30 \cdot (1296540 x^{8}) + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.12

Multiply $30$ by $1296540$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 30 x^{3} (432180 x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.13

Rewrite using the commutative property of multiplication.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 30 \cdot (432180 x^{3} x^{2}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.14

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 4.16.20.18.14.1

Move $x^{2}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 30 \cdot (432180 (x^{2} x^{3})) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.14.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 30 \cdot (432180 x^{2 + 3}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.14.3

Add $2$ and $3$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 30 \cdot (432180 x^{5}) + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.15

Multiply $30$ by $432180$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 7 (58320 x^{14}) + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.16

Multiply $58320$ by $7$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 408240 x^{14} + 7 (442260 x^{11}) + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.17

Multiply $442260$ by $7$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 408240 x^{14} + 3095820 x^{11} + 7 (1190700 x^{8}) + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.18

Multiply $1190700$ by $7$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 408240 x^{14} + 3095820 x^{11} + 8334900 x^{8} + 7 (1296540 x^{5}) + 7 (432180 x^{2}))$

Step 4.16.20.18.19

Multiply $1296540$ by $7$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 408240 x^{14} + 3095820 x^{11} + 8334900 x^{8} + 9075780 x^{5} + 7 (432180 x^{2}))$

Step 4.16.20.18.20

Multiply $432180$ by $7$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13267800 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 408240 x^{14} + 3095820 x^{11} + 8334900 x^{8} + 9075780 x^{5} + 3025260 x^{2})$

Step 4.16.20.19

Add $13267800 x^{14}$ and $408240 x^{14}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13676040 x^{14} + 35721000 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 3095820 x^{11} + 8334900 x^{8} + 9075780 x^{5} + 3025260 x^{2})$

Step 4.16.20.20

Add $35721000 x^{11}$ and $3095820 x^{11}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13676040 x^{14} + 38816820 x^{11} + 38896200 x^{8} + 12965400 x^{5} + 8334900 x^{8} + 9075780 x^{5} + 3025260 x^{2})$

Step 4.16.20.21

Add $38896200 x^{8}$ and $8334900 x^{8}$ .

$f^{4} (x) = 126 (656100 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 87480 x^{17} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13676040 x^{14} + 38816820 x^{11} + 47231100 x^{8} + 12965400 x^{5} + 9075780 x^{5} + 3025260 x^{2})$

Step 4.16.20.22

Add $12965400 x^{5}$ and $9075780 x^{5}$ .

Step 4.16.21

Add $656100 x^{17}$ and $87480 x^{17}$ .

$f^{4} (x) = 126 (743580 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 1749600 x^{17} + 13676040 x^{14} + 38816820 x^{11} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.22

Add $743580 x^{17}$ and $1749600 x^{17}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 6123600 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 1020600 x^{14} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 13676040 x^{14} + 38816820 x^{11} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.23

Add $6123600 x^{14}$ and $1020600 x^{14}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 7144200 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 13676040 x^{14} + 38816820 x^{11} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.24

Add $7144200 x^{14}$ and $13676040 x^{14}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 21432600 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 4762800 x^{11} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 38816820 x^{11} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.25

Add $21432600 x^{11}$ and $4762800 x^{11}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 26195400 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 38816820 x^{11} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.26

Add $26195400 x^{11}$ and $38816820 x^{11}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 33339600 x^{8} + 19448100 x^{5} + 11113200 x^{8} + 12965400 x^{5} + 6050520 x^{2} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.27

Add $33339600 x^{8}$ and $11113200 x^{8}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 44452800 x^{8} + 19448100 x^{5} + 12965400 x^{5} + 6050520 x^{2} + 47231100 x^{8} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.28

Add $44452800 x^{8}$ and $47231100 x^{8}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 91683900 x^{8} + 19448100 x^{5} + 12965400 x^{5} + 6050520 x^{2} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.29

Add $19448100 x^{5}$ and $12965400 x^{5}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 91683900 x^{8} + 32413500 x^{5} + 6050520 x^{2} + 22041180 x^{5} + 3025260 x^{2})$

Step 4.16.30

Add $32413500 x^{5}$ and $22041180 x^{5}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 91683900 x^{8} + 54454680 x^{5} + 6050520 x^{2} + 3025260 x^{2})$

Step 4.16.31

Add $6050520 x^{2}$ and $3025260 x^{2}$ .

$f^{4} (x) = 126 (2493180 x^{17} + 20820240 x^{14} + 65012220 x^{11} + 91683900 x^{8} + 54454680 x^{5} + 9075780 x^{2})$

Step 4.16.32

Apply the distributive property.

$f^{4} (x) = 126 (2493180 x^{17}) + 126 (20820240 x^{14}) + 126 (65012220 x^{11}) + 126 (91683900 x^{8}) + 126 (54454680 x^{5}) + 126 (9075780 x^{2})$

Step 4.16.33

Simplify.

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Step 4.16.33.1

Multiply $2493180$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 126 (20820240 x^{14}) + 126 (65012220 x^{11}) + 126 (91683900 x^{8}) + 126 (54454680 x^{5}) + 126 (9075780 x^{2})$

Step 4.16.33.2

Multiply $20820240$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 2623350240 x^{14} + 126 (65012220 x^{11}) + 126 (91683900 x^{8}) + 126 (54454680 x^{5}) + 126 (9075780 x^{2})$

Step 4.16.33.3

Multiply $65012220$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 126 (91683900 x^{8}) + 126 (54454680 x^{5}) + 126 (9075780 x^{2})$

Step 4.16.33.4

Multiply $91683900$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 11552171400 x^{8} + 126 (54454680 x^{5}) + 126 (9075780 x^{2})$

Step 4.16.33.5

Multiply $54454680$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 11552171400 x^{8} + 6861289680 x^{5} + 126 (9075780 x^{2})$

Step 4.16.33.6

Multiply $9075780$ by $126$ .

$f^{4} (x) = 314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 11552171400 x^{8} + 6861289680 x^{5} + 1143548280 x^{2}$

Step 5

The fourth derivative of $f (x)$ with respect to $x$ is $314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 11552171400 x^{8} + 6861289680 x^{5} + 1143548280 x^{2}$ .

$314140680 x^{17} + 2623350240 x^{14} + 8191539720 x^{11} + 11552171400 x^{8} + 6861289680 x^{5} + 1143548280 x^{2}$