Calculus Examples

$36 x^{3} {(3 x^{4} + 7)}^{2}$

Step 1

Since $36$ is constant with respect to $x$ , the derivative of $36 x^{3} {(3 x^{4} + 7)}^{2}$ with respect to $x$ is $36 \frac{d}{d x} [x^{3} {(3 x^{4} + 7)}^{2}]$ .

$36 \frac{d}{d x} [x^{3} {(3 x^{4} + 7)}^{2}]$

Step 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 $g (x) = {(3 x^{4} + 7)}^{2}$ .

$36 (x^{3} \frac{d}{d x} [{(3 x^{4} + 7)}^{2}] + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 3

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{2}$ and $g (x) = 3 x^{4} + 7$ .

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Step 3.1

To apply the Chain Rule, set $u$ as $3 x^{4} + 7$ .

$36 (x^{3} (\frac{d}{d u} [u^{2}] \frac{d}{d x} [3 x^{4} + 7]) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 3.2

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

$36 (x^{3} (2 u \frac{d}{d x} [3 x^{4} + 7]) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 3.3

Replace all occurrences of $u$ with $3 x^{4} + 7$ .

$36 (x^{3} (2 (3 x^{4} + 7) \frac{d}{d x} [3 x^{4} + 7]) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4

Differentiate.

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Step 4.1

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

$36 (x^{3} (2 (3 x^{4} + 7) (\frac{d}{d x} [3 x^{4}] + \frac{d}{d x} [7])) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.2

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

$36 (x^{3} (2 (3 x^{4} + 7) (3 \frac{d}{d x} [x^{4}] + \frac{d}{d x} [7])) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.3

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

$36 (x^{3} (2 (3 x^{4} + 7) (3 (4 x^{3}) + \frac{d}{d x} [7])) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.4

Multiply $4$ by $3$ .

$36 (x^{3} (2 (3 x^{4} + 7) (12 x^{3} + \frac{d}{d x} [7])) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.5

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

$36 (x^{3} (2 (3 x^{4} + 7) (12 x^{3} + 0)) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.6

Simplify the expression.

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Step 4.6.1

Add $12 x^{3}$ and $0$ .

$36 (x^{3} (2 (3 x^{4} + 7) (12 x^{3})) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 4.6.2

Multiply $12$ by $2$ .

$36 (x^{3} (24 (3 x^{4} + 7) x^{3}) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 5

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

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Step 5.1

Move $x^{3}$ .

$36 (x^{3} x^{3} (24 (3 x^{4} + 7)) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 5.2

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

$36 (x^{3 + 3} (24 (3 x^{4} + 7)) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 5.3

Add $3$ and $3$ .

$36 (x^{6} (24 (3 x^{4} + 7)) + {(3 x^{4} + 7)}^{2} \frac{d}{d x} [x^{3}])$

Step 6

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

$36 (x^{6} (24 (3 x^{4} + 7)) + {(3 x^{4} + 7)}^{2} (3 x^{2}))$

Step 7

Move $3$ to the left of ${(3 x^{4} + 7)}^{2}$ .

$36 (x^{6} (24 (3 x^{4} + 7)) + 3 \cdot {(3 x^{4} + 7)}^{2} x^{2})$

Step 8

Simplify.

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Step 8.1

Apply the distributive property.

$36 (x^{6} (24 (3 x^{4}) + 24 \cdot 7) + 3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.2

Apply the distributive property.

$36 (x^{6} (24 (3 x^{4})) + x^{6} (24 \cdot 7) + 3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.3

Apply the distributive property.

$36 (x^{6} (24 (3 x^{4}))) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4

Combine terms.

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Step 8.4.1

Multiply $3$ by $24$ .

$36 (x^{6} (72 x^{4})) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.2

Multiply $x^{6}$ by $x^{4}$ by adding the exponents.

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Step 8.4.2.1

Move $x^{4}$ .

$36 (x^{4} x^{6} \cdot 72) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.2.2

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

$36 (x^{4 + 6} \cdot 72) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.2.3

Add $4$ and $6$ .

$36 (x^{10} \cdot 72) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.3

Move $72$ to the left of $x^{10}$ .

$36 (72 \cdot x^{10}) + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.4

Multiply $72$ by $36$ .

$2592 x^{10} + 36 (x^{6} (24 \cdot 7)) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.5

Multiply $24$ by $7$ .

$2592 x^{10} + 36 (x^{6} \cdot 168) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.6

Move $168$ to the left of $x^{6}$ .

$2592 x^{10} + 36 (168 \cdot x^{6}) + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.7

Multiply $168$ by $36$ .

$2592 x^{10} + 6048 x^{6} + 36 (3 {(3 x^{4} + 7)}^{2} x^{2})$

Step 8.4.8

Multiply $3$ by $36$ .

$2592 x^{10} + 6048 x^{6} + 108 {(3 x^{4} + 7)}^{2} x^{2}$

Step 8.5

Reorder terms.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} {(3 x^{4} + 7)}^{2}$

Step 8.6

Simplify each term.

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Step 8.6.1

Rewrite ${(3 x^{4} + 7)}^{2}$ as $(3 x^{4} + 7) (3 x^{4} + 7)$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} ((3 x^{4} + 7) (3 x^{4} + 7))$

Step 8.6.2

Expand $(3 x^{4} + 7) (3 x^{4} + 7)$ using the FOIL Method.

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Step 8.6.2.1

Apply the distributive property.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 x^{4} (3 x^{4} + 7) + 7 (3 x^{4} + 7))$

Step 8.6.2.2

Apply the distributive property.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 x^{4} (3 x^{4}) + 3 x^{4} \cdot 7 + 7 (3 x^{4} + 7))$

Step 8.6.2.3

Apply the distributive property.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 x^{4} (3 x^{4}) + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3

Simplify and combine like terms.

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Step 8.6.3.1

Simplify each term.

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Step 8.6.3.1.1

Rewrite using the commutative property of multiplication.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 \cdot 3 x^{4} x^{4} + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.2

Multiply $x^{4}$ by $x^{4}$ by adding the exponents.

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Step 8.6.3.1.2.1

Move $x^{4}$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 \cdot 3 (x^{4} x^{4}) + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.2.2

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

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 \cdot 3 x^{4 + 4} + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.2.3

Add $4$ and $4$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (3 \cdot 3 x^{8} + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.3

Multiply $3$ by $3$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8} + 3 x^{4} \cdot 7 + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.4

Multiply $7$ by $3$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8} + 21 x^{4} + 7 (3 x^{4}) + 7 \cdot 7)$

Step 8.6.3.1.5

Multiply $3$ by $7$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8} + 21 x^{4} + 21 x^{4} + 7 \cdot 7)$

Step 8.6.3.1.6

Multiply $7$ by $7$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8} + 21 x^{4} + 21 x^{4} + 49)$

Step 8.6.3.2

Add $21 x^{4}$ and $21 x^{4}$ .

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8} + 42 x^{4} + 49)$

Step 8.6.4

Apply the distributive property.

$2592 x^{10} + 6048 x^{6} + 108 x^{2} (9 x^{8}) + 108 x^{2} (42 x^{4}) + 108 x^{2} \cdot 49$

Step 8.6.5

Simplify.

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Step 8.6.5.1

Rewrite using the commutative property of multiplication.

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 x^{2} x^{8} + 108 x^{2} (42 x^{4}) + 108 x^{2} \cdot 49$

Step 8.6.5.2

Rewrite using the commutative property of multiplication.

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 x^{2} x^{8} + 108 \cdot 42 x^{2} x^{4} + 108 x^{2} \cdot 49$

Step 8.6.5.3

Multiply $49$ by $108$ .

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 x^{2} x^{8} + 108 \cdot 42 x^{2} x^{4} + 5292 x^{2}$

Step 8.6.6

Simplify each term.

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Step 8.6.6.1

Multiply $x^{2}$ by $x^{8}$ by adding the exponents.

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Step 8.6.6.1.1

Move $x^{8}$ .

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 (x^{8} x^{2}) + 108 \cdot 42 x^{2} x^{4} + 5292 x^{2}$

Step 8.6.6.1.2

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

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 x^{8 + 2} + 108 \cdot 42 x^{2} x^{4} + 5292 x^{2}$

Step 8.6.6.1.3

Add $8$ and $2$ .

$2592 x^{10} + 6048 x^{6} + 108 \cdot 9 x^{10} + 108 \cdot 42 x^{2} x^{4} + 5292 x^{2}$

Step 8.6.6.2

Multiply $108$ by $9$ .

$2592 x^{10} + 6048 x^{6} + 972 x^{10} + 108 \cdot 42 x^{2} x^{4} + 5292 x^{2}$

Step 8.6.6.3

Multiply $x^{2}$ by $x^{4}$ by adding the exponents.

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Step 8.6.6.3.1

Move $x^{4}$ .

$2592 x^{10} + 6048 x^{6} + 972 x^{10} + 108 \cdot 42 (x^{4} x^{2}) + 5292 x^{2}$

Step 8.6.6.3.2

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

$2592 x^{10} + 6048 x^{6} + 972 x^{10} + 108 \cdot 42 x^{4 + 2} + 5292 x^{2}$

Step 8.6.6.3.3

Add $4$ and $2$ .

$2592 x^{10} + 6048 x^{6} + 972 x^{10} + 108 \cdot 42 x^{6} + 5292 x^{2}$

Step 8.6.6.4

Multiply $108$ by $42$ .

$2592 x^{10} + 6048 x^{6} + 972 x^{10} + 4536 x^{6} + 5292 x^{2}$

Step 8.7

Add $2592 x^{10}$ and $972 x^{10}$ .

$3564 x^{10} + 6048 x^{6} + 4536 x^{6} + 5292 x^{2}$

Step 8.8

Add $6048 x^{6}$ and $4536 x^{6}$ .

$3564 x^{10} + 10584 x^{6} + 5292 x^{2}$