Calculus Examples

$y = {(2 x - 4)}^{5} {(1 - x^{3})}^{4}$

Step 1

Differentiate both sides of the equation.

$\frac{d}{d x} (y) = \frac{d}{d x} ({(2 x - 4)}^{5} {(1 - x^{3})}^{4})$

Step 2

The derivative of $y$ with respect to $x$ is $y'$ .

$y'$

Step 3

Differentiate the right side of the equation.

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Step 3.1

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 $f (x) = {(2 x - 4)}^{5}$ and $g (x) = {(1 - x^{3})}^{4}$ .

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

Step 3.2

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 $g (x) = 1 - x^{3}$ .

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Step 3.2.1

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

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

Step 3.2.2

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

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

Step 3.2.3

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

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

Step 3.3

Differentiate.

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Step 3.3.1

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

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

Step 3.3.2

By the Sum Rule, the derivative of $1 - x^{3}$ with respect to $x$ is $\frac{d}{d x} [1] + \frac{d}{d x} [- x^{3}]$ .

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

Step 3.3.3

Since $1$ is constant with respect to $x$ , the derivative of $1$ with respect to $x$ is $0$ .

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

Step 3.3.4

Add $0$ and $\frac{d}{d x} [- x^{3}]$ .

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

Step 3.3.5

Since $- 1$ is constant with respect to $x$ , the derivative of $- x^{3}$ with respect to $x$ is $- \frac{d}{d x} [x^{3}]$ .

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

Step 3.3.6

Multiply $- 1$ by $4$ .

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

Step 3.3.7

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

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

Step 3.3.8

Multiply $3$ by $- 4$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + {(1 - x^{3})}^{4} \frac{d}{d x} [{(2 x - 4)}^{5}]$

Step 3.4

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 $g (x) = 2 x - 4$ .

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Step 3.4.1

To apply the Chain Rule, set $u_{2}$ as $2 x - 4$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + {(1 - x^{3})}^{4} (\frac{d}{d u_{2}} [{u_{2}}^{5}] \frac{d}{d x} [2 x - 4])$

Step 3.4.2

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

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + {(1 - x^{3})}^{4} (5 {u_{2}}^{4} \frac{d}{d x} [2 x - 4])$

Step 3.4.3

Replace all occurrences of $u_{2}$ with $2 x - 4$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + {(1 - x^{3})}^{4} (5 {(2 x - 4)}^{4} \frac{d}{d x} [2 x - 4])$

Step 3.5

Differentiate.

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Step 3.5.1

Move $5$ to the left of ${(1 - x^{3})}^{4}$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 \cdot {(1 - x^{3})}^{4} {(2 x - 4)}^{4} \frac{d}{d x} [2 x - 4]$

Step 3.5.2

By the Sum Rule, the derivative of $2 x - 4$ with respect to $x$ is $\frac{d}{d x} [2 x] + \frac{d}{d x} [- 4]$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} (\frac{d}{d x} [2 x] + \frac{d}{d x} [- 4])$

Step 3.5.3

Since $2$ is constant with respect to $x$ , the derivative of $2 x$ with respect to $x$ is $2 \frac{d}{d x} [x]$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} (2 \frac{d}{d x} [x] + \frac{d}{d x} [- 4])$

Step 3.5.4

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

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} (2 \cdot 1 + \frac{d}{d x} [- 4])$

Step 3.5.5

Multiply $2$ by $1$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} (2 + \frac{d}{d x} [- 4])$

Step 3.5.6

Since $- 4$ is constant with respect to $x$ , the derivative of $- 4$ with respect to $x$ is $0$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} (2 + 0)$

Step 3.5.7

Simplify with factoring out.

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Step 3.5.7.1

Add $2$ and $0$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 5 {(1 - x^{3})}^{4} {(2 x - 4)}^{4} \cdot 2$

Step 3.5.7.2

Multiply $2$ by $5$ .

$- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 10 {(1 - x^{3})}^{4} {(2 x - 4)}^{4}$

Step 3.5.7.3

Factor $2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3}$ out of $- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2} + 10 {(1 - x^{3})}^{4} {(2 x - 4)}^{4}$ .

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Step 3.5.7.3.1

Factor $2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3}$ out of $- 12 {(2 x - 4)}^{5} {(1 - x^{3})}^{3} x^{2}$ .

$2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2}) + 10 {(1 - x^{3})}^{4} {(2 x - 4)}^{4}$

Step 3.5.7.3.2

Factor $2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3}$ out of $10 {(1 - x^{3})}^{4} {(2 x - 4)}^{4}$ .

$2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2}) + 2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (5 (1 - x^{3}))$

Step 3.5.7.3.3

Factor $2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3}$ out of $2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2}) + 2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (5 (1 - x^{3}))$ .

$2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2} + 5 (1 - x^{3}))$

Step 4

Reform the equation by setting the left side equal to the right side.

$y' = 2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2} + 5 (1 - x^{3}))$

Step 5

Replace $y'$ with $\frac{d y}{d x}$ .

$\frac{d y}{d x} = 2 {(2 x - 4)}^{4} {(1 - x^{3})}^{3} (- 6 (2 x - 4) x^{2} + 5 (1 - x^{3}))$