Calculus Examples

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

Step 1

Differentiate both sides of the equation.

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

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

Cancel the common factor of $4$ and $6 - 2 x^{2}$ .

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Step 3.1.1

Factor $2$ out of $4 x^{2}$ .

$\frac{d}{d x} [{(\frac{2 (2 x^{2})}{6 - 2 x^{2}})}^{5}]$

Step 3.1.2

Cancel the common factors.

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Step 3.1.2.1

Factor $2$ out of $6$ .

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

Step 3.1.2.2

Factor $2$ out of $- 2 x^{2}$ .

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

Step 3.1.2.3

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

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

Step 3.1.2.4

Cancel the common factor.

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

Step 3.1.2.5

Rewrite the expression.

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

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

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Step 3.2.1

To apply the Chain Rule, set $u$ as $\frac{2 x^{2}}{3 - x^{2}}$ .

$\frac{d}{d u} [u^{5}] \frac{d}{d x} [\frac{2 x^{2}}{3 - x^{2}}]$

Step 3.2.2

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

$5 u^{4} \frac{d}{d x} [\frac{2 x^{2}}{3 - x^{2}}]$

Step 3.2.3

Replace all occurrences of $u$ with $\frac{2 x^{2}}{3 - x^{2}}$ .

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Step 3.2.3.1

Factor $2$ out of $4 x^{2}$ .

$5 {(\frac{2 (2 x^{2})}{6 - 2 x^{2}})}^{4} \frac{d}{d x} [\frac{2 x^{2}}{3 - x^{2}}]$

Step 3.2.3.2

Cancel the common factors.

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Step 3.2.3.2.1

Factor $2$ out of $6$ .

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

Step 3.2.3.2.2

Factor $2$ out of $- 2 x^{2}$ .

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

Step 3.2.3.2.3

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

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

Step 3.2.3.2.4

Cancel the common factor.

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

Step 3.2.3.2.5

Rewrite the expression.

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

Step 3.3

Differentiate using the Constant Multiple Rule.

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Step 3.3.1

Since $2$ is constant with respect to $x$ , the derivative of $\frac{2 x^{2}}{3 - x^{2}}$ with respect to $x$ is $2 \frac{d}{d x} [\frac{x^{2}}{3 - x^{2}}]$ .

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

Step 3.3.2

Multiply $2$ by $5$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{d}{d x} [\frac{x^{2}}{3 - x^{2}}]$

Step 3.4

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{(3 - x^{2}) \frac{d}{d x} [x^{2}] - x^{2} \frac{d}{d x} [3 - x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5

Differentiate.

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Step 3.5.1

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{(3 - x^{2}) (2 x) - x^{2} \frac{d}{d x} [3 - x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5.2

Move $2$ to the left of $3 - x^{2}$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 \cdot (3 - x^{2}) x - x^{2} \frac{d}{d x} [3 - x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5.3

By the Sum Rule, the derivative of $3 - x^{2}$ with respect to $x$ is $\frac{d}{d x} [3] + \frac{d}{d x} [- x^{2}]$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x - x^{2} (\frac{d}{d x} [3] + \frac{d}{d x} [- x^{2}])}{{(3 - x^{2})}^{2}}$

Step 3.5.4

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x - x^{2} (0 + \frac{d}{d x} [- x^{2}])}{{(3 - x^{2})}^{2}}$

Step 3.5.5

Add $0$ and $\frac{d}{d x} [- x^{2}]$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x - x^{2} \frac{d}{d x} [- x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5.6

Since $- 1$ is constant with respect to $x$ , the derivative of $- x^{2}$ with respect to $x$ is $- \frac{d}{d x} [x^{2}]$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x - x^{2} (- \frac{d}{d x} [x^{2}])}{{(3 - x^{2})}^{2}}$

Step 3.5.7

Multiply.

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Step 3.5.7.1

Multiply $- 1$ by $- 1$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + 1 x^{2} \frac{d}{d x} [x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5.7.2

Multiply $x^{2}$ by $1$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x^{2} \frac{d}{d x} [x^{2}]}{{(3 - x^{2})}^{2}}$

Step 3.5.8

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x^{2} (2 x)}{{(3 - x^{2})}^{2}}$

Step 3.6

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

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Step 3.6.1

Move $x$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x \cdot x^{2} \cdot 2}{{(3 - x^{2})}^{2}}$

Step 3.6.2

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

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Step 3.6.2.1

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x^{1} x^{2} \cdot 2}{{(3 - x^{2})}^{2}}$

Step 3.6.2.2

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

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x^{1 + 2} \cdot 2}{{(3 - x^{2})}^{2}}$

Step 3.6.3

Add $1$ and $2$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + x^{3} \cdot 2}{{(3 - x^{2})}^{2}}$

Step 3.7

Move $2$ to the left of $x^{3}$ .

$10 {(\frac{2 x^{2}}{3 - x^{2}})}^{4} \frac{2 (3 - x^{2}) x + 2 \cdot x^{3}}{{(3 - x^{2})}^{2}}$

Step 3.8

Combine $\frac{2 (3 - x^{2}) x + 2 x^{3}}{{(3 - x^{2})}^{2}}$ and $10$ .

$\frac{(2 (3 - x^{2}) x + 2 x^{3}) \cdot 10}{{(3 - x^{2})}^{2}} {(\frac{2 x^{2}}{3 - x^{2}})}^{4}$

Step 3.9

Move $10$ to the left of $2 (3 - x^{2}) x + 2 x^{3}$ .

$\frac{10 \cdot (2 (3 - x^{2}) x + 2 x^{3})}{{(3 - x^{2})}^{2}} {(\frac{2 x^{2}}{3 - x^{2}})}^{4}$

Step 3.10

Simplify.

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Step 3.10.1

Apply the product rule to $\frac{2 x^{2}}{3 - x^{2}}$ .

$\frac{10 (2 (3 - x^{2}) x + 2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{{(2 x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.2

Apply the product rule to $2 x^{2}$ .

$\frac{10 (2 (3 - x^{2}) x + 2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.3

Apply the distributive property.

$\frac{10 ((2 \cdot 3 + 2 (- x^{2})) x + 2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.4

Apply the distributive property.

$\frac{10 (2 \cdot 3 x + 2 (- x^{2}) x + 2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.5

Apply the distributive property.

$\frac{10 (2 \cdot 3 x) + 10 (2 (- x^{2}) x) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6

Combine terms.

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Step 3.10.6.1

Multiply $2$ by $3$ .

$\frac{10 (6 x) + 10 (2 (- x^{2}) x) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.2

Multiply $6$ by $10$ .

$\frac{60 x + 10 (2 (- x^{2}) x) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.3

Multiply $- 1$ by $2$ .

$\frac{60 x + 10 (- 2 x^{2} x) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.4

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

$\frac{60 x + 10 (- 2 (x^{1} x^{2})) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.5

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

$\frac{60 x + 10 (- 2 x^{1 + 2}) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.6

Add $1$ and $2$ .

$\frac{60 x + 10 (- 2 x^{3}) + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.7

Multiply $- 2$ by $10$ .

$\frac{60 x - 20 x^{3} + 10 (2 x^{3})}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.8

Multiply $2$ by $10$ .

$\frac{60 x - 20 x^{3} + 20 x^{3}}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.9

Add $- 20 x^{3}$ and $20 x^{3}$ .

$\frac{60 x + 0}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.10

Add $60 x$ and $0$ .

$\frac{60 x}{{(3 - x^{2})}^{2}} \cdot \frac{2^{4} {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.11

Raise $2$ to the power of $4$ .

$\frac{60 x}{{(3 - x^{2})}^{2}} \cdot \frac{16 {(x^{2})}^{4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.12

Multiply the exponents in ${(x^{2})}^{4}$ .

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Step 3.10.6.12.1

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

$\frac{60 x}{{(3 - x^{2})}^{2}} \cdot \frac{16 x^{2 \cdot 4}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.12.2

Multiply $2$ by $4$ .

$\frac{60 x}{{(3 - x^{2})}^{2}} \cdot \frac{16 x^{8}}{{(3 - x^{2})}^{4}}$

Step 3.10.6.13

Multiply $\frac{60 x}{{(3 - x^{2})}^{2}}$ by $\frac{16 x^{8}}{{(3 - x^{2})}^{4}}$ .

$\frac{60 x (16 x^{8})}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.14

Multiply $16$ by $60$ .

$\frac{960 x \cdot x^{8}}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.15

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

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Step 3.10.6.15.1

Move $x^{8}$ .

$\frac{960 (x^{8} x)}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.15.2

Multiply $x^{8}$ by $x$ .

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Step 3.10.6.15.2.1

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

$\frac{960 (x^{8} x^{1})}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.15.2.2

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

$\frac{960 x^{8 + 1}}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.15.3

Add $8$ and $1$ .

$\frac{960 x^{9}}{{(3 - x^{2})}^{2} {(3 - x^{2})}^{4}}$

Step 3.10.6.16

Multiply ${(3 - x^{2})}^{2}$ by ${(3 - x^{2})}^{4}$ by adding the exponents.

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Step 3.10.6.16.1

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

$\frac{960 x^{9}}{{(3 - x^{2})}^{2 + 4}}$

Step 3.10.6.16.2

Add $2$ and $4$ .

$\frac{960 x^{9}}{{(3 - x^{2})}^{6}}$

Step 3.10.7

Reorder terms.

$\frac{960 x^{9}}{{(- x^{2} + 3)}^{6}}$

Step 4

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

$y' = \frac{960 x^{9}}{{(- x^{2} + 3)}^{6}}$

Step 5

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

$\frac{d y}{d x} = \frac{960 x^{9}}{{(- x^{2} + 3)}^{6}}$