Calculus Examples

$y = {(\sqrt{x^{3}} + \sqrt{x^{5}})}^{n}$

Step 1

Rewrite $\frac{d}{d x} [{(\sqrt{x^{3}} + \sqrt{x^{5}})}^{n}]$ as $\frac{d}{d x} [{(x \sqrt{x} + x^{2} \sqrt{x})}^{n}]$ .

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Step 1.1

Factor out $x^{2}$ .

$\frac{d}{d x} [{(\sqrt{x^{2} x} + \sqrt{x^{5}})}^{n}]$

Step 1.2

Pull terms out from under the radical.

$\frac{d}{d x} [{(x \sqrt{x} + \sqrt{x^{5}})}^{n}]$

Step 1.3

Rewrite $x^{5}$ as ${(x^{2})}^{2} x$ .

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Step 1.3.1

Factor out $x^{4}$ .

$\frac{d}{d x} [{(x \sqrt{x} + \sqrt{x^{4} x})}^{n}]$

Step 1.3.2

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

$\frac{d}{d x} [{(x \sqrt{x} + \sqrt{{(x^{2})}^{2} x})}^{n}]$

Step 1.4

Pull terms out from under the radical.

$\frac{d}{d x} [{(x \sqrt{x} + x^{2} \sqrt{x})}^{n}]$

Step 2

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x}$ as $x^{\frac{1}{2}}$ .

$\frac{d}{d x} [{(x \cdot x^{\frac{1}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 3

Multiply $x$ by $x^{\frac{1}{2}}$ by adding the exponents.

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Step 3.1

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

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Step 3.1.1

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

$\frac{d}{d x} [{(x^{1} x^{\frac{1}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 3.1.2

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

$\frac{d}{d x} [{(x^{1 + \frac{1}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 3.2

Write $1$ as a fraction with a common denominator.

$\frac{d}{d x} [{(x^{\frac{2}{2} + \frac{1}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 3.3

Combine the numerators over the common denominator.

$\frac{d}{d x} [{(x^{\frac{2 + 1}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 3.4

Add $2$ and $1$ .

$\frac{d}{d x} [{(x^{\frac{3}{2}} + x^{2} \sqrt{x})}^{n}]$

Step 4

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x}$ as $x^{\frac{1}{2}}$ .

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

Step 5

Multiply $x^{2}$ by $x^{\frac{1}{2}}$ by adding the exponents.

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Step 5.1

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

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

Step 5.2

To write $2$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 5.3

Combine $2$ and $\frac{2}{2}$ .

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

Step 5.4

Combine the numerators over the common denominator.

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

Step 5.5

Simplify the numerator.

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Step 5.5.1

Multiply $2$ by $2$ .

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

Step 5.5.2

Add $4$ and $1$ .

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

Step 6

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{n}$ and $g (x) = x^{\frac{3}{2}} + x^{\frac{5}{2}}$ .

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Step 6.1

To apply the Chain Rule, set $u$ as $x^{\frac{3}{2}} + x^{\frac{5}{2}}$ .

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

Step 6.2

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

$n u^{n - 1} \frac{d}{d x} [x^{\frac{3}{2}} + x^{\frac{5}{2}}]$

Step 6.3

Replace all occurrences of $u$ with $x^{\frac{3}{2}} + x^{\frac{5}{2}}$ .

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Step 6.3.1

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

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

Step 6.3.2

To write $2$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 6.3.3

Combine $2$ and $\frac{2}{2}$ .

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

Step 6.3.4

Combine the numerators over the common denominator.

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

Step 6.3.5

Simplify the numerator.

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Step 6.3.5.1

Multiply $2$ by $2$ .

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

Step 6.3.5.2

Add $4$ and $1$ .

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

Step 7

Differentiate.

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Step 7.1

By the Sum Rule, the derivative of $x^{\frac{3}{2}} + x^{\frac{5}{2}}$ with respect to $x$ is $\frac{d}{d x} [x^{\frac{3}{2}}] + \frac{d}{d x} [x^{\frac{5}{2}}]$ .

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

Step 7.2

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = \frac{3}{2}$ .

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

Step 8

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 9

Combine $- 1$ and $\frac{2}{2}$ .

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

Step 10

Combine the numerators over the common denominator.

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

Step 11

Simplify the numerator.

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Step 11.1

Multiply $- 1$ by $2$ .

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

Step 11.2

Subtract $2$ from $3$ .

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

Step 12

Combine $\frac{3}{2}$ and $x^{\frac{1}{2}}$ .

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

Step 13

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

$n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (\frac{3 x^{\frac{1}{2}}}{2} + \frac{5}{2} x^{\frac{5}{2} - 1})$

Step 14

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 15

Combine $- 1$ and $\frac{2}{2}$ .

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

Step 16

Combine the numerators over the common denominator.

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

Step 17

Simplify the numerator.

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Step 17.1

Multiply $- 1$ by $2$ .

$n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (\frac{3 x^{\frac{1}{2}}}{2} + \frac{5}{2} x^{\frac{5 - 2}{2}})$

Step 17.2

Subtract $2$ from $5$ .

$n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (\frac{3 x^{\frac{1}{2}}}{2} + \frac{5}{2} x^{\frac{3}{2}})$

Step 18

Combine $\frac{5}{2}$ and $x^{\frac{3}{2}}$ .

$n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (\frac{3 x^{\frac{1}{2}}}{2} + \frac{5 x^{\frac{3}{2}}}{2})$

Step 19

Simplify.

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Step 19.1

Apply the distributive property.

$n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{3 x^{\frac{1}{2}}}{2} + n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{5 x^{\frac{3}{2}}}{2}$

Step 19.2

Multiply $n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{3 x^{\frac{1}{2}}}{2}$ .

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Step 19.2.1

Combine $\frac{3 x^{\frac{1}{2}}}{2}$ and $n$ .

$\frac{3 x^{\frac{1}{2}} n}{2} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} + n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{5 x^{\frac{3}{2}}}{2}$

Step 19.2.2

Combine $\frac{3 x^{\frac{1}{2}} n}{2}$ and ${(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

$\frac{3 x^{\frac{1}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2} + n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{5 x^{\frac{3}{2}}}{2}$

Step 19.3

Multiply $n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} \frac{5 x^{\frac{3}{2}}}{2}$ .

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Step 19.3.1

Combine $\frac{5 x^{\frac{3}{2}}}{2}$ and $n$ .

$\frac{3 x^{\frac{1}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2} + \frac{5 x^{\frac{3}{2}} n}{2} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$

Step 19.3.2

Combine $\frac{5 x^{\frac{3}{2}} n}{2}$ and ${(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

$\frac{3 x^{\frac{1}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2} + \frac{5 x^{\frac{3}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2}$

Step 19.4

Combine the numerators over the common denominator.

$\frac{3 x^{\frac{1}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} + 5 x^{\frac{3}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2}$

Step 19.5

Reorder factors in $3 x^{\frac{1}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} + 5 x^{\frac{3}{2}} n {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

$\frac{3 n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} + 5 n x^{\frac{3}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2}$

Step 19.6

Simplify the numerator.

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Step 19.6.1

Factor $n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ out of $3 n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} + 5 n x^{\frac{3}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

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Step 19.6.1.1

Factor $n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ out of $3 n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

$\frac{n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3) + 5 n x^{\frac{3}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}}{2}$

Step 19.6.1.2

Factor $n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ out of $5 n x^{\frac{3}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ .

$\frac{n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3) + n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (5 x^{\frac{2}{2}})}{2}$

Step 19.6.1.3

Factor $n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1}$ out of $n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3) + n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (5 x^{\frac{2}{2}})$ .

$\frac{n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3 + 5 x^{\frac{2}{2}})}{2}$

Step 19.6.2

Divide $2$ by $2$ .

$\frac{n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3 + 5 x^{1})}{2}$

Step 19.6.3

Simplify.

$\frac{n x^{\frac{1}{2}} {(x^{\frac{3}{2}} + x^{\frac{5}{2}})}^{n - 1} (3 + 5 x)}{2}$