Calculus Examples

Derive $y = \frac{1}{\sqrt[3]{x}} - \frac{2}{\sqrt{x^{5}}} + \sqrt[5]{x^{2}}$

Step 1

Rewrite the right side with rational exponents.

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Step 1.1

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

$y = \frac{1}{x^{\frac{1}{3}}} - \frac{2}{\sqrt{x^{5}}} + \sqrt[5]{x^{2}}$

Step 1.2

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x^{5}}$ as $x^{\frac{5}{2}}$ .

$y = \frac{1}{x^{\frac{1}{3}}} - \frac{2}{x^{\frac{5}{2}}} + \sqrt[5]{x^{2}}$

Step 1.3

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[5]{x^{2}}$ as $x^{\frac{2}{5}}$ .

$y = \frac{1}{x^{\frac{1}{3}}} - \frac{2}{x^{\frac{5}{2}}} + x^{\frac{2}{5}}$

Step 2

Differentiate both sides of the equation.

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

Step 3

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

$y'$

Step 4

Differentiate the right side of the equation.

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Step 4.1

By the Sum Rule, the derivative of $\frac{1}{x^{\frac{1}{3}}} - \frac{2}{x^{\frac{5}{2}}} + x^{\frac{2}{5}}$ with respect to $x$ is $\frac{d}{d x} [\frac{1}{x^{\frac{1}{3}}}] + \frac{d}{d x} [- \frac{2}{x^{\frac{5}{2}}}] + \frac{d}{d x} [x^{\frac{2}{5}}]$ .

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

Step 4.2

Evaluate $\frac{d}{d x} [\frac{1}{x^{\frac{1}{3}}}]$ .

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Step 4.2.1

Rewrite $\frac{1}{x^{\frac{1}{3}}}$ as ${(x^{\frac{1}{3}})}^{- 1}$ .

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

Step 4.2.2

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{- 1}$ and $g (x) = x^{\frac{1}{3}}$ .

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Step 4.2.2.1

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

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

Step 4.2.2.2

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

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

Step 4.2.2.3

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

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

Step 4.2.3

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

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

Step 4.2.4

Multiply the exponents in ${(x^{\frac{1}{3}})}^{- 2}$ .

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Step 4.2.4.1

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

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

Step 4.2.4.2

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

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

Step 4.2.4.3

Move the negative in front of the fraction.

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

Step 4.2.5

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

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

Step 4.2.6

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

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

Step 4.2.7

Combine the numerators over the common denominator.

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

Step 4.2.8

Simplify the numerator.

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Step 4.2.8.1

Multiply $- 1$ by $3$ .

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

Step 4.2.8.2

Subtract $3$ from $1$ .

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

Step 4.2.9

Move the negative in front of the fraction.

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

Step 4.2.10

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

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

Step 4.2.11

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

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

Step 4.2.12

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

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Step 4.2.12.1

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

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

Step 4.2.12.2

Combine the numerators over the common denominator.

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

Step 4.2.12.3

Subtract $2$ from $- 2$ .

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

Step 4.2.12.4

Move the negative in front of the fraction.

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

Step 4.2.13

Move $x^{- \frac{4}{3}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

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

Step 4.3

Evaluate $\frac{d}{d x} [- \frac{2}{x^{\frac{5}{2}}}]$ .

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Step 4.3.1

Since $- 2$ is constant with respect to $x$ , the derivative of $- \frac{2}{x^{\frac{5}{2}}}$ with respect to $x$ is $- 2 \frac{d}{d x} [\frac{1}{x^{\frac{5}{2}}}]$ .

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

Step 4.3.2

Rewrite $\frac{1}{x^{\frac{5}{2}}}$ as ${(x^{\frac{5}{2}})}^{- 1}$ .

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

Step 4.3.3

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{- 1}$ and $g (x) = x^{\frac{5}{2}}$ .

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Step 4.3.3.1

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

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

Step 4.3.3.2

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

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

Step 4.3.3.3

Replace all occurrences of $u_{2}$ with $x^{\frac{5}{2}}$ .

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

Step 4.3.4

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

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

Step 4.3.5

Multiply the exponents in ${(x^{\frac{5}{2}})}^{- 2}$ .

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Step 4.3.5.1

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

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

Step 4.3.5.2

Cancel the common factor of $2$ .

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Step 4.3.5.2.1

Factor $2$ out of $- 2$ .

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

Step 4.3.5.2.2

Cancel the common factor.

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

Step 4.3.5.2.3

Rewrite the expression.

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

Step 4.3.5.3

Multiply $5$ by $- 1$ .

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

Step 4.3.6

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

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

Step 4.3.7

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

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

Step 4.3.8

Combine the numerators over the common denominator.

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

Step 4.3.9

Simplify the numerator.

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Step 4.3.9.1

Multiply $- 1$ by $2$ .

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

Step 4.3.9.2

Subtract $2$ from $5$ .

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

Step 4.3.10

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

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

Step 4.3.11

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

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

Step 4.3.12

Multiply $x^{\frac{3}{2}}$ by $x^{- 5}$ by adding the exponents.

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Step 4.3.12.1

Move $x^{- 5}$ .

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

Step 4.3.12.2

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

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

Step 4.3.12.3

To write $- 5$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

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

Step 4.3.12.4

Combine $- 5$ and $\frac{2}{2}$ .

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

Step 4.3.12.5

Combine the numerators over the common denominator.

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

Step 4.3.12.6

Simplify the numerator.

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Step 4.3.12.6.1

Multiply $- 5$ by $2$ .

$- \frac{1}{3 x^{\frac{4}{3}}} - 2 (- \frac{5 x^{\frac{- 10 + 3}{2}}}{2}) + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.12.6.2

Add $- 10$ and $3$ .

$- \frac{1}{3 x^{\frac{4}{3}}} - 2 (- \frac{5 x^{\frac{- 7}{2}}}{2}) + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.12.7

Move the negative in front of the fraction.

$- \frac{1}{3 x^{\frac{4}{3}}} - 2 (- \frac{5 x^{- \frac{7}{2}}}{2}) + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.13

Move $x^{- \frac{7}{2}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} - 2 (- \frac{5}{2 x^{\frac{7}{2}}}) + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.14

Multiply $- 1$ by $- 2$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + 2 \frac{5}{2 x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.15

Combine $2$ and $\frac{5}{2 x^{\frac{7}{2}}}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{2 \cdot 5}{2 x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.16

Multiply $2$ by $5$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{10}{2 x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.17

Factor $2$ out of $10$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{2 \cdot 5}{2 x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.18

Cancel the common factors.

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Step 4.3.18.1

Factor $2$ out of $2 x^{\frac{7}{2}}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{2 \cdot 5}{2 (x^{\frac{7}{2}})} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.18.2

Cancel the common factor.

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{2 \cdot 5}{2 x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.3.18.3

Rewrite the expression.

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{d}{d x} [x^{\frac{2}{5}}]$

Step 4.4

Evaluate $\frac{d}{d x} [x^{\frac{2}{5}}]$ .

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Step 4.4.1

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

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{2}{5} - 1}$

Step 4.4.2

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{2}{5} - 1 \cdot \frac{5}{5}}$

Step 4.4.3

Combine $- 1$ and $\frac{5}{5}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{2}{5} + \frac{- 1 \cdot 5}{5}}$

Step 4.4.4

Combine the numerators over the common denominator.

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{2 - 1 \cdot 5}{5}}$

Step 4.4.5

Simplify the numerator.

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Step 4.4.5.1

Multiply $- 1$ by $5$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{2 - 5}{5}}$

Step 4.4.5.2

Subtract $5$ from $2$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{\frac{- 3}{5}}$

Step 4.4.6

Move the negative in front of the fraction.

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} x^{- \frac{3}{5}}$

Step 4.5

Simplify.

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Step 4.5.1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5} \cdot \frac{1}{x^{\frac{3}{5}}}$

Step 4.5.2

Multiply $\frac{2}{5}$ by $\frac{1}{x^{\frac{3}{5}}}$ .

$- \frac{1}{3 x^{\frac{4}{3}}} + \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5 x^{\frac{3}{5}}}$

Step 4.5.3

Reorder terms.

$\frac{5}{x^{\frac{7}{2}}} + \frac{2}{5 x^{\frac{3}{5}}} - \frac{1}{3 x^{\frac{4}{3}}}$

Step 5

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

$y' = \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5 x^{\frac{3}{5}}} - \frac{1}{3 x^{\frac{4}{3}}}$

Step 6

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

$\frac{d y}{d x} = \frac{5}{x^{\frac{7}{2}}} + \frac{2}{5 x^{\frac{3}{5}}} - \frac{1}{3 x^{\frac{4}{3}}}$