Calculus Examples

$y = \frac{\sqrt[3]{x} - 7}{\sqrt{x} + 3}$

Step 1

Apply basic rules of exponents.

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Step 1.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{x}$ as $x^{\frac{1}{3}}$ .

$\frac{d}{d x} [\frac{x^{\frac{1}{3}} - 7}{\sqrt{x} + 3}]$

Step 1.2

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

$\frac{d}{d x} [\frac{x^{\frac{1}{3}} - 7}{x^{\frac{1}{2}} + 3}]$

Step 2

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 $f (x) = x^{\frac{1}{3}} - 7$ and $g (x) = x^{\frac{1}{2}} + 3$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{d}{d x} [x^{\frac{1}{3}} - 7] - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 3

Differentiate.

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Step 3.1

By the Sum Rule, the derivative of $x^{\frac{1}{3}} - 7$ with respect to $x$ is $\frac{d}{d x} [x^{\frac{1}{3}}] + \frac{d}{d x} [- 7]$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{d}{d x} [x^{\frac{1}{3}}] + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 3.2

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

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{1}{3} - 1} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 4

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{1}{3} - 1 \cdot \frac{3}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 5

Combine $- 1$ and $\frac{3}{3}$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{1}{3} + \frac{- 1 \cdot 3}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 6

Combine the numerators over the common denominator.

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{1 - 1 \cdot 3}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 7

Simplify the numerator.

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Step 7.1

Multiply $- 1$ by $3$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{1 - 3}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 7.2

Subtract $3$ from $1$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{\frac{- 2}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 8

Combine fractions.

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Step 8.1

Move the negative in front of the fraction.

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3} x^{- \frac{2}{3}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 8.2

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

$\frac{(x^{\frac{1}{2}} + 3) (\frac{x^{- \frac{2}{3}}}{3} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 8.3

Move $x^{- \frac{2}{3}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3 x^{\frac{2}{3}}} + \frac{d}{d x} [- 7]) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 9

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

$\frac{(x^{\frac{1}{2}} + 3) (\frac{1}{3 x^{\frac{2}{3}}} + 0) - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 10

Add $\frac{1}{3 x^{\frac{2}{3}}}$ and $0$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) \frac{d}{d x} [x^{\frac{1}{2}} + 3]}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 11

By the Sum Rule, the derivative of $x^{\frac{1}{2}} + 3$ with respect to $x$ is $\frac{d}{d x} [x^{\frac{1}{2}}] + \frac{d}{d x} [3]$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{d}{d x} [x^{\frac{1}{2}}] + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 12

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

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{1}{2} - 1} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 13

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

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{1}{2} - 1 \cdot \frac{2}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 14

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

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 15

Combine the numerators over the common denominator.

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{1 - 1 \cdot 2}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 16

Simplify the numerator.

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Step 16.1

Multiply $- 1$ by $2$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{1 - 2}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 16.2

Subtract $2$ from $1$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{\frac{- 1}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 17

Combine fractions.

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Step 17.1

Move the negative in front of the fraction.

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2} x^{- \frac{1}{2}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 17.2

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

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{x^{- \frac{1}{2}}}{2} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 17.3

Move $x^{- \frac{1}{2}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2 x^{\frac{1}{2}}} + \frac{d}{d x} [3])}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 18

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

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) (\frac{1}{2 x^{\frac{1}{2}}} + 0)}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 19

Add $\frac{1}{2 x^{\frac{1}{2}}}$ and $0$ .

$\frac{(x^{\frac{1}{2}} + 3) \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20

Simplify.

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Step 20.1

Apply the distributive property.

$\frac{x^{\frac{1}{2}} \frac{1}{3 x^{\frac{2}{3}}} + 3 \frac{1}{3 x^{\frac{2}{3}}} - (x^{\frac{1}{3}} - 7) \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.2

Apply the distributive property.

$\frac{x^{\frac{1}{2}} \frac{1}{3 x^{\frac{2}{3}}} + 3 \frac{1}{3 x^{\frac{2}{3}}} + (- x^{\frac{1}{3}} - - 7) \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.3

Apply the distributive property.

$\frac{x^{\frac{1}{2}} \frac{1}{3 x^{\frac{2}{3}}} + 3 \frac{1}{3 x^{\frac{2}{3}}} - x^{\frac{1}{3}} \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4

Simplify the numerator.

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Step 20.4.1

Simplify each term.

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Step 20.4.1.1

Cancel the common factor of $x^{\frac{1}{2}}$ .

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Step 20.4.1.1.1

Factor $x^{\frac{1}{2}}$ out of $3 x^{\frac{2}{3}}$ .

$\frac{x^{\frac{1}{2}} \frac{1}{x^{\frac{1}{2}} (3 x^{\frac{1}{6}})} + 3 \frac{1}{3 x^{\frac{2}{3}}} - x^{\frac{1}{3}} \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.1.2

Cancel the common factor.

Step 20.4.1.1.3

Rewrite the expression.

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + 3 \frac{1}{3 x^{\frac{2}{3}}} - x^{\frac{1}{3}} \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.2

Cancel the common factor of $3$ .

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Step 20.4.1.2.1

Cancel the common factor.

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + 3 \frac{1}{3 x^{\frac{2}{3}}} - x^{\frac{1}{3}} \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.2.2

Rewrite the expression.

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} - x^{\frac{1}{3}} \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.3

Cancel the common factor of $x^{\frac{1}{3}}$ .

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Step 20.4.1.3.1

Factor $x^{\frac{1}{3}}$ out of $- x^{\frac{1}{3}}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + x^{\frac{1}{3}} \cdot - 1 \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.3.2

Factor $x^{\frac{1}{3}}$ out of $2 x^{\frac{1}{2}}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + x^{\frac{1}{3}} \cdot - 1 \frac{1}{x^{\frac{1}{3}} (2 x^{\frac{1}{6}})} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.3.3

Cancel the common factor.

Step 20.4.1.3.4

Rewrite the expression.

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} - 1 \frac{1}{2 x^{\frac{1}{6}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.4

Rewrite $- 1 \frac{1}{2 x^{\frac{1}{6}}}$ as $- \frac{1}{2 x^{\frac{1}{6}}}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} - \frac{1}{2 x^{\frac{1}{6}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.5

Multiply $- 1$ by $- 7$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} - \frac{1}{2 x^{\frac{1}{6}}} + 7 \frac{1}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.1.6

Combine $7$ and $\frac{1}{2 x^{\frac{1}{2}}}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} - \frac{1}{2 x^{\frac{1}{6}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.2

To write $\frac{1}{3 x^{\frac{1}{6}}}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} \cdot \frac{2}{2} - \frac{1}{2 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.3

To write $- \frac{1}{2 x^{\frac{1}{6}}}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{\frac{1}{3 x^{\frac{1}{6}}} \cdot \frac{2}{2} - \frac{1}{2 x^{\frac{1}{6}}} \cdot \frac{3}{3} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.4

Write each expression with a common denominator of $6 x^{\frac{1}{6}}$ , by multiplying each by an appropriate factor of $1$ .

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Step 20.4.4.1

Multiply $\frac{1}{3 x^{\frac{1}{6}}}$ by $\frac{2}{2}$ .

$\frac{\frac{2}{3 x^{\frac{1}{6}} \cdot 2} - \frac{1}{2 x^{\frac{1}{6}}} \cdot \frac{3}{3} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.4.2

Multiply $2$ by $3$ .

$\frac{\frac{2}{6 x^{\frac{1}{6}}} - \frac{1}{2 x^{\frac{1}{6}}} \cdot \frac{3}{3} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.4.3

Multiply $\frac{1}{2 x^{\frac{1}{6}}}$ by $\frac{3}{3}$ .

$\frac{\frac{2}{6 x^{\frac{1}{6}}} - \frac{3}{2 x^{\frac{1}{6}} \cdot 3} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.4.4

Multiply $3$ by $2$ .

$\frac{\frac{2}{6 x^{\frac{1}{6}}} - \frac{3}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.5

Combine the numerators over the common denominator.

$\frac{\frac{2 - 3}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.6

Subtract $3$ from $2$ .

$\frac{\frac{- 1}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.4.7

Move the negative in front of the fraction.

$\frac{- \frac{1}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5

Combine terms.

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Step 20.5.1

Multiply $\frac{- \frac{1}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$ by $\frac{2 x^{\frac{2}{3}}}{2 x^{\frac{2}{3}}}$ .

$\frac{2 x^{\frac{2}{3}}}{2 x^{\frac{2}{3}}} \cdot \frac{- \frac{1}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}}}{{(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.2

Combine.

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}} + \frac{1}{x^{\frac{2}{3}}} + \frac{7}{2 x^{\frac{1}{2}}})}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.3

Apply the distributive property.

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + 2 x^{\frac{2}{3}} \frac{1}{x^{\frac{2}{3}}} + 2 x^{\frac{2}{3}} \frac{7}{2 x^{\frac{1}{2}}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.4

Cancel the common factor of $x^{\frac{2}{3}}$ .

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Step 20.5.4.1

Factor $x^{\frac{2}{3}}$ out of $2 x^{\frac{2}{3}}$ .

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + x^{\frac{2}{3}} \cdot 2 \frac{1}{x^{\frac{2}{3}}} + 2 x^{\frac{2}{3}} \frac{7}{2 x^{\frac{1}{2}}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.4.2

Cancel the common factor.

Step 20.5.4.3

Rewrite the expression.

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + 2 + 2 x^{\frac{2}{3}} \frac{7}{2 x^{\frac{1}{2}}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.5

Cancel the common factor of $2 x^{\frac{1}{2}}$ .

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Step 20.5.5.1

Factor $2 x^{\frac{1}{2}}$ out of $2 x^{\frac{2}{3}}$ .

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + 2 + 2 x^{\frac{1}{2}} (x^{\frac{1}{6}}) \frac{7}{2 x^{\frac{1}{2}}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.5.2

Cancel the common factor.

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + 2 + 2 x^{\frac{1}{2}} x^{\frac{1}{6}} \frac{7}{2 x^{\frac{1}{2}}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.5.3

Rewrite the expression.

$\frac{2 x^{\frac{2}{3}} (- \frac{1}{6 x^{\frac{1}{6}}}) + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.6

Multiply $- 1$ by $2$ .

$\frac{- 2 x^{\frac{2}{3}} \frac{1}{6 x^{\frac{1}{6}}} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.7

Combine $- 2$ and $\frac{1}{6 x^{\frac{1}{6}}}$ .

$\frac{x^{\frac{2}{3}} \frac{- 2}{6 x^{\frac{1}{6}}} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.8

Combine $x^{\frac{2}{3}}$ and $\frac{- 2}{6 x^{\frac{1}{6}}}$ .

$\frac{\frac{x^{\frac{2}{3}} \cdot - 2}{6 x^{\frac{1}{6}}} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.9

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

$\frac{\frac{- 2 \cdot x^{\frac{2}{3}}}{6 x^{\frac{1}{6}}} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.10

Move $x^{\frac{1}{6}}$ to the numerator using the negative exponent rule $\frac{1}{b^{n}} = b^{- n}$ .

$\frac{\frac{- 2 x^{\frac{2}{3}} x^{- \frac{1}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11

Multiply $x^{\frac{2}{3}}$ by $x^{- \frac{1}{6}}$ by adding the exponents.

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Step 20.5.11.1

Move $x^{- \frac{1}{6}}$ .

$\frac{\frac{- 2 (x^{- \frac{1}{6}} x^{\frac{2}{3}})}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.2

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

$\frac{\frac{- 2 x^{- \frac{1}{6} + \frac{2}{3}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.3

To write $\frac{2}{3}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{\frac{- 2 x^{- \frac{1}{6} + \frac{2}{3} \cdot \frac{2}{2}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.4

Write each expression with a common denominator of $6$ , by multiplying each by an appropriate factor of $1$ .

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Step 20.5.11.4.1

Multiply $\frac{2}{3}$ by $\frac{2}{2}$ .

$\frac{\frac{- 2 x^{- \frac{1}{6} + \frac{2 \cdot 2}{3 \cdot 2}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.4.2

Multiply $3$ by $2$ .

$\frac{\frac{- 2 x^{- \frac{1}{6} + \frac{2 \cdot 2}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.5

Combine the numerators over the common denominator.

$\frac{\frac{- 2 x^{\frac{- 1 + 2 \cdot 2}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.6

Simplify the numerator.

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Step 20.5.11.6.1

Multiply $2$ by $2$ .

$\frac{\frac{- 2 x^{\frac{- 1 + 4}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.6.2

Add $- 1$ and $4$ .

$\frac{\frac{- 2 x^{\frac{3}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.7

Cancel the common factor of $3$ and $6$ .

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Step 20.5.11.7.1

Factor $3$ out of $3$ .

$\frac{\frac{- 2 x^{\frac{3 (1)}{6}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.7.2

Cancel the common factors.

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Step 20.5.11.7.2.1

Factor $3$ out of $6$ .

$\frac{\frac{- 2 x^{\frac{3 \cdot 1}{3 \cdot 2}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.7.2.2

Cancel the common factor.

$\frac{\frac{- 2 x^{\frac{3 \cdot 1}{3 \cdot 2}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.11.7.2.3

Rewrite the expression.

$\frac{\frac{- 2 x^{\frac{1}{2}}}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.12

Factor $2$ out of $- 2 x^{\frac{1}{2}}$ .

$\frac{\frac{2 (- x^{\frac{1}{2}})}{6} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.13

Cancel the common factors.

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Step 20.5.13.1

Factor $2$ out of $6$ .

$\frac{\frac{2 (- x^{\frac{1}{2}})}{2 (3)} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.13.2

Cancel the common factor.

$\frac{\frac{2 (- x^{\frac{1}{2}})}{2 \cdot 3} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.13.3

Rewrite the expression.

$\frac{\frac{- x^{\frac{1}{2}}}{3} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.14

Move the negative in front of the fraction.

$\frac{- \frac{x^{\frac{1}{2}}}{3} + 2 + x^{\frac{1}{6}} \cdot 7}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.5.15

Move $7$ to the left of $x^{\frac{1}{6}}$ .

$\frac{- \frac{x^{\frac{1}{2}}}{3} + 2 + 7 x^{\frac{1}{6}}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.6

Reorder terms.

$\frac{7 x^{\frac{1}{6}} + 2 - \frac{x^{\frac{1}{2}}}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7

Simplify the numerator.

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Step 20.7.1

To write $7 x^{\frac{1}{6}}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{7 x^{\frac{1}{6}} \cdot \frac{3}{3} - \frac{x^{\frac{1}{2}}}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.2

Combine $7 x^{\frac{1}{6}}$ and $\frac{3}{3}$ .

$\frac{\frac{7 x^{\frac{1}{6}} \cdot 3}{3} - \frac{x^{\frac{1}{2}}}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.3

Combine the numerators over the common denominator.

$\frac{\frac{7 x^{\frac{1}{6}} \cdot 3 - x^{\frac{1}{2}}}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4

Simplify the numerator.

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Step 20.7.4.1

Factor $x^{\frac{1}{6}}$ out of $7 x^{\frac{1}{6}} \cdot 3 - x^{\frac{1}{2}}$ .

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Step 20.7.4.1.1

Move $x^{\frac{1}{6}}$ .

$\frac{\frac{7 \cdot 3 x^{\frac{1}{6}} - x^{\frac{1}{2}}}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.1.2

Factor $x^{\frac{1}{6}}$ out of $7 \cdot 3 x^{\frac{1}{6}}$ .

$\frac{\frac{x^{\frac{1}{6}} (7 \cdot 3) - x^{\frac{1}{2}}}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.1.3

Factor $x^{\frac{1}{6}}$ out of $- x^{\frac{1}{2}}$ .

$\frac{\frac{x^{\frac{1}{6}} (7 \cdot 3) + x^{\frac{1}{6}} (- x^{\frac{2}{6}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.1.4

Factor $x^{\frac{1}{6}}$ out of $x^{\frac{1}{6}} (7 \cdot 3) + x^{\frac{1}{6}} (- x^{\frac{2}{6}})$ .

$\frac{\frac{x^{\frac{1}{6}} (7 \cdot 3 - x^{\frac{2}{6}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.2

Multiply $7$ by $3$ .

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{2}{6}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.3

Cancel the common factor of $2$ and $6$ .

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Step 20.7.4.3.1

Factor $2$ out of $2$ .

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{2 (1)}{6}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.3.2

Cancel the common factors.

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Step 20.7.4.3.2.1

Factor $2$ out of $6$ .

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{2 \cdot 1}{2 \cdot 3}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.3.2.2

Cancel the common factor.

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{2 \cdot 1}{2 \cdot 3}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.4.3.2.3

Rewrite the expression.

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{1}{3}})}{3} + 2}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.5

To write $2$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{1}{3}})}{3} + 2 \cdot \frac{3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.6

Combine $2$ and $\frac{3}{3}$ .

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{1}{3}})}{3} + \frac{2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.7

Combine the numerators over the common denominator.

$\frac{\frac{x^{\frac{1}{6}} (21 - x^{\frac{1}{3}}) + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8

Simplify the numerator.

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Step 20.7.8.1

Apply the distributive property.

$\frac{\frac{x^{\frac{1}{6}} \cdot 21 + x^{\frac{1}{6}} (- x^{\frac{1}{3}}) + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.2

Move $21$ to the left of $x^{\frac{1}{6}}$ .

$\frac{\frac{21 \cdot x^{\frac{1}{6}} + x^{\frac{1}{6}} (- x^{\frac{1}{3}}) + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.3

Rewrite using the commutative property of multiplication.

$\frac{\frac{21 \cdot x^{\frac{1}{6}} - x^{\frac{1}{6}} x^{\frac{1}{3}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4

Multiply $x^{\frac{1}{6}}$ by $x^{\frac{1}{3}}$ by adding the exponents.

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Step 20.7.8.4.1

Move $x^{\frac{1}{3}}$ .

$\frac{\frac{21 x^{\frac{1}{6}} - (x^{\frac{1}{3}} x^{\frac{1}{6}}) + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.2

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

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{3} + \frac{1}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.3

To write $\frac{1}{3}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{3} \cdot \frac{2}{2} + \frac{1}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.4

Write each expression with a common denominator of $6$ , by multiplying each by an appropriate factor of $1$ .

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Step 20.7.8.4.4.1

Multiply $\frac{1}{3}$ by $\frac{2}{2}$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{2}{3 \cdot 2} + \frac{1}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.4.2

Multiply $3$ by $2$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{2}{6} + \frac{1}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.5

Combine the numerators over the common denominator.

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{2 + 1}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.6

Add $2$ and $1$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{3}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.7

Cancel the common factor of $3$ and $6$ .

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Step 20.7.8.4.7.1

Factor $3$ out of $3$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{3 (1)}{6}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.7.2

Cancel the common factors.

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Step 20.7.8.4.7.2.1

Factor $3$ out of $6$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{3 \cdot 1}{3 \cdot 2}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.7.2.2

Cancel the common factor.

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{3 \cdot 1}{3 \cdot 2}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.4.7.2.3

Rewrite the expression.

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 2 \cdot 3}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.7.8.5

Multiply $2$ by $3$ .

$\frac{\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{3}}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.8

Multiply the numerator by the reciprocal of the denominator.

$\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{3} \cdot \frac{1}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$

Step 20.9

Multiply $\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{3} \cdot \frac{1}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$ .

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Step 20.9.1

Multiply $\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{3}$ by $\frac{1}{2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$ .

$\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{3 (2 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2})}$

Step 20.9.2

Multiply $2$ by $3$ .

$\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{6 (x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2})}$

$\frac{21 x^{\frac{1}{6}} - x^{\frac{1}{2}} + 6}{6 x^{\frac{2}{3}} {(x^{\frac{1}{2}} + 3)}^{2}}$