Calculus Examples

${(x + 2)}^{5} {(x - 3)}^{4}$

Step 1

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 $f (x) = {(x + 2)}^{5}$ and $g (x) = {(x - 3)}^{4}$ .

${(x + 2)}^{5} \frac{d}{d x} [{(x - 3)}^{4}] + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 2

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 $g (x) = x - 3$ .

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Step 2.1

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

${(x + 2)}^{5} (\frac{d}{d u_{1}} [{u_{1}}^{4}] \frac{d}{d x} [x - 3]) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 2.2

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

${(x + 2)}^{5} (4 {u_{1}}^{3} \frac{d}{d x} [x - 3]) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 2.3

Replace all occurrences of $u_{1}$ with $x - 3$ .

${(x + 2)}^{5} (4 {(x - 3)}^{3} \frac{d}{d x} [x - 3]) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3

Differentiate.

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Step 3.1

Move $4$ to the left of ${(x + 2)}^{5}$ .

$4 \cdot {(x + 2)}^{5} {(x - 3)}^{3} \frac{d}{d x} [x - 3] + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3.2

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

$4 {(x + 2)}^{5} {(x - 3)}^{3} (\frac{d}{d x} [x] + \frac{d}{d x} [- 3]) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3.3

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

$4 {(x + 2)}^{5} {(x - 3)}^{3} (1 + \frac{d}{d x} [- 3]) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3.4

Since $- 3$ is constant with respect to $x$ , the derivative of $- 3$ with respect to $x$ is $0$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} (1 + 0) + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3.5

Simplify the expression.

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Step 3.5.1

Add $1$ and $0$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} \cdot 1 + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 3.5.2

Multiply $4$ by $1$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + {(x - 3)}^{4} \frac{d}{d x} [{(x + 2)}^{5}]$

Step 4

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 $g (x) = x + 2$ .

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Step 4.1

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

$4 {(x + 2)}^{5} {(x - 3)}^{3} + {(x - 3)}^{4} (\frac{d}{d u_{2}} [{u_{2}}^{5}] \frac{d}{d x} [x + 2])$

Step 4.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{2}} [{u_{2}}^{n}]$ is $n {u_{2}}^{n - 1}$ where $n = 5$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + {(x - 3)}^{4} (5 {u_{2}}^{4} \frac{d}{d x} [x + 2])$

Step 4.3

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

$4 {(x + 2)}^{5} {(x - 3)}^{3} + {(x - 3)}^{4} (5 {(x + 2)}^{4} \frac{d}{d x} [x + 2])$

Step 5

Differentiate.

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Step 5.1

Move $5$ to the left of ${(x - 3)}^{4}$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 \cdot {(x - 3)}^{4} {(x + 2)}^{4} \frac{d}{d x} [x + 2]$

Step 5.2

By the Sum Rule, the derivative of $x + 2$ with respect to $x$ is $\frac{d}{d x} [x] + \frac{d}{d x} [2]$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4} (\frac{d}{d x} [x] + \frac{d}{d x} [2])$

Step 5.3

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

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4} (1 + \frac{d}{d x} [2])$

Step 5.4

Since $2$ is constant with respect to $x$ , the derivative of $2$ with respect to $x$ is $0$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4} (1 + 0)$

Step 5.5

Simplify with factoring out.

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Step 5.5.1

Add $1$ and $0$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4} \cdot 1$

Step 5.5.2

Multiply $5$ by $1$ .

$4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4}$

Step 5.5.3

Factor ${(x + 2)}^{4} {(x - 3)}^{3}$ out of $4 {(x + 2)}^{5} {(x - 3)}^{3} + 5 {(x - 3)}^{4} {(x + 2)}^{4}$ .

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Step 5.5.3.1

Factor ${(x + 2)}^{4} {(x - 3)}^{3}$ out of $4 {(x + 2)}^{5} {(x - 3)}^{3}$ .

${(x + 2)}^{4} {(x - 3)}^{3} (4 (x + 2)) + 5 {(x - 3)}^{4} {(x + 2)}^{4}$

Step 5.5.3.2

Factor ${(x + 2)}^{4} {(x - 3)}^{3}$ out of $5 {(x - 3)}^{4} {(x + 2)}^{4}$ .

${(x + 2)}^{4} {(x - 3)}^{3} (4 (x + 2)) + {(x + 2)}^{4} {(x - 3)}^{3} (5 (x - 3))$

Step 5.5.3.3

Factor ${(x + 2)}^{4} {(x - 3)}^{3}$ out of ${(x + 2)}^{4} {(x - 3)}^{3} (4 (x + 2)) + {(x + 2)}^{4} {(x - 3)}^{3} (5 (x - 3))$ .

${(x + 2)}^{4} {(x - 3)}^{3} (4 (x + 2) + 5 (x - 3))$