Precalculus Examples

$f (x) = 3 \sqrt{x} - 5 \sqrt[4]{x^{3}} + 13 \sqrt[5]{x^{2}} - \frac{3}{\sqrt[3]{x^{2}}}$

Step 1

By the Sum Rule, the derivative of $3 \sqrt{x} - 5 \sqrt[4]{x^{3}} + 13 \sqrt[5]{x^{2}} - \frac{3}{\sqrt[3]{x^{2}}}$ with respect to $x$ is $\frac{d}{d x} [3 \sqrt{x}] + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$ .

$\frac{d}{d x} [3 \sqrt{x}] + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2

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

Tap for more steps...

Step 2.1

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

$\frac{d}{d x} [3 x^{\frac{1}{2}}] + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{\frac{1}{2}}$ with respect to $x$ is $3 \frac{d}{d x} [x^{\frac{1}{2}}]$ .

$3 \frac{d}{d x} [x^{\frac{1}{2}}] + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.3

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

$3 (\frac{1}{2} x^{\frac{1}{2} - 1}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.4

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

$3 (\frac{1}{2} x^{\frac{1}{2} - 1 \cdot \frac{2}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.5

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

$3 (\frac{1}{2} x^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.6

Combine the numerators over the common denominator.

$3 (\frac{1}{2} x^{\frac{1 - 1 \cdot 2}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.7

Simplify the numerator.

Tap for more steps...

Step 2.7.1

Multiply $- 1$ by $2$ .

$3 (\frac{1}{2} x^{\frac{1 - 2}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.7.2

Subtract $2$ from $1$ .

$3 (\frac{1}{2} x^{\frac{- 1}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.8

Move the negative in front of the fraction.

$3 (\frac{1}{2} x^{- \frac{1}{2}}) + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.9

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

$3 \frac{x^{- \frac{1}{2}}}{2} + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.10

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

$\frac{3 x^{- \frac{1}{2}}}{2} + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 2.11

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

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{d}{d x} [- 5 \sqrt[4]{x^{3}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3

Evaluate $\frac{d}{d x} [- 5 \sqrt[4]{x^{3}}]$ .

Tap for more steps...

Step 3.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[4]{x^{3}}$ as $x^{\frac{3}{4}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{d}{d x} [- 5 x^{\frac{3}{4}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.2

Since $- 5$ is constant with respect to $x$ , the derivative of $- 5 x^{\frac{3}{4}}$ with respect to $x$ is $- 5 \frac{d}{d x} [x^{\frac{3}{4}}]$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 \frac{d}{d x} [x^{\frac{3}{4}}] + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = \frac{3}{4}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{3}{4} - 1}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.4

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{4}{4}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{3}{4} - 1 \cdot \frac{4}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.5

Combine $- 1$ and $\frac{4}{4}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{3}{4} + \frac{- 1 \cdot 4}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.6

Combine the numerators over the common denominator.

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{3 - 1 \cdot 4}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.7

Simplify the numerator.

Tap for more steps...

Step 3.7.1

Multiply $- 1$ by $4$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{3 - 4}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.7.2

Subtract $4$ from $3$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{\frac{- 1}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.8

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - 5 (\frac{3}{4} x^{- \frac{1}{4}}) + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.9

Combine $\frac{3}{4}$ and $x^{- \frac{1}{4}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - 5 \frac{3 x^{- \frac{1}{4}}}{4} + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.10

Combine $- 5$ and $\frac{3 x^{- \frac{1}{4}}}{4}$ .

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{- 5 (3 x^{- \frac{1}{4}})}{4} + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.11

Multiply $3$ by $- 5$ .

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{- 15 x^{- \frac{1}{4}}}{4} + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.12

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

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{- 15}{4 x^{\frac{1}{4}}} + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 3.13

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{d}{d x} [13 \sqrt[5]{x^{2}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4

Evaluate $\frac{d}{d x} [13 \sqrt[5]{x^{2}}]$ .

Tap for more steps...

Step 4.1

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{d}{d x} [13 x^{\frac{2}{5}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.2

Since $13$ is constant with respect to $x$ , the derivative of $13 x^{\frac{2}{5}}$ with respect to $x$ is $13 \frac{d}{d x} [x^{\frac{2}{5}}]$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 \frac{d}{d x} [x^{\frac{2}{5}}] + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.3

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{2}{5} - 1}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.4

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{2}{5} - 1 \cdot \frac{5}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.5

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{2}{5} + \frac{- 1 \cdot 5}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.6

Combine the numerators over the common denominator.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{2 - 1 \cdot 5}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.7

Simplify the numerator.

Tap for more steps...

Step 4.7.1

Multiply $- 1$ by $5$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{2 - 5}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.7.2

Subtract $5$ from $2$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{\frac{- 3}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.8

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 (\frac{2}{5} x^{- \frac{3}{5}}) + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.9

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + 13 \frac{2 x^{- \frac{3}{5}}}{5} + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.10

Combine $13$ and $\frac{2 x^{- \frac{3}{5}}}{5}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{13 (2 x^{- \frac{3}{5}})}{5} + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.11

Multiply $2$ by $13$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26 x^{- \frac{3}{5}}}{5} + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 4.12

Move $x^{- \frac{3}{5}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$

Step 5

Evaluate $\frac{d}{d x} [- \frac{3}{\sqrt[3]{x^{2}}}]$ .

Tap for more steps...

Step 5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{x^{2}}$ as $x^{\frac{2}{3}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{d}{d x} [- \frac{3}{x^{\frac{2}{3}}}]$

Step 5.2

Since $- 3$ is constant with respect to $x$ , the derivative of $- \frac{3}{x^{\frac{2}{3}}}$ with respect to $x$ is $- 3 \frac{d}{d x} [\frac{1}{x^{\frac{2}{3}}}]$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 \frac{d}{d x} [\frac{1}{x^{\frac{2}{3}}}]$

Step 5.3

Rewrite $\frac{1}{x^{\frac{2}{3}}}$ as ${(x^{\frac{2}{3}})}^{- 1}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 \frac{d}{d x} [{(x^{\frac{2}{3}})}^{- 1}]$

Step 5.4

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{- 1}$ and $g (x) = x^{\frac{2}{3}}$ .

Tap for more steps...

Step 5.4.1

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (\frac{d}{d u} [u^{- 1}] \frac{d}{d x} [x^{\frac{2}{3}}])$

Step 5.4.2

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- u^{- 2} \frac{d}{d x} [x^{\frac{2}{3}}])$

Step 5.4.3

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- {(x^{\frac{2}{3}})}^{- 2} \frac{d}{d x} [x^{\frac{2}{3}}])$

Step 5.5

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- {(x^{\frac{2}{3}})}^{- 2} (\frac{2}{3} x^{\frac{2}{3} - 1}))$

Step 5.6

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

Tap for more steps...

Step 5.6.1

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{\frac{2}{3} \cdot - 2} (\frac{2}{3} x^{\frac{2}{3} - 1}))$

Step 5.6.2

Multiply $\frac{2}{3} \cdot - 2$ .

Tap for more steps...

Step 5.6.2.1

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{\frac{2 \cdot - 2}{3}} (\frac{2}{3} x^{\frac{2}{3} - 1}))$

Step 5.6.2.2

Multiply $2$ by $- 2$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{\frac{- 4}{3}} (\frac{2}{3} x^{\frac{2}{3} - 1}))$

Step 5.6.3

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{2}{3} - 1}))$

Step 5.7

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{2}{3} - 1 \cdot \frac{3}{3}}))$

Step 5.8

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{2}{3} + \frac{- 1 \cdot 3}{3}}))$

Step 5.9

Combine the numerators over the common denominator.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{2 - 1 \cdot 3}{3}}))$

Step 5.10

Simplify the numerator.

Tap for more steps...

Step 5.10.1

Multiply $- 1$ by $3$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{2 - 3}{3}}))$

Step 5.10.2

Subtract $3$ from $2$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{\frac{- 1}{3}}))$

Step 5.11

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} (\frac{2}{3} x^{- \frac{1}{3}}))$

Step 5.12

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- x^{- \frac{4}{3}} \frac{2 x^{- \frac{1}{3}}}{3})$

Step 5.13

Combine $\frac{2 x^{- \frac{1}{3}}}{3}$ and $x^{- \frac{4}{3}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 x^{- \frac{1}{3}} x^{- \frac{4}{3}}}{3})$

Step 5.14

Multiply $x^{- \frac{1}{3}}$ by $x^{- \frac{4}{3}}$ by adding the exponents.

Tap for more steps...

Step 5.14.1

Move $x^{- \frac{4}{3}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 (x^{- \frac{4}{3}} x^{- \frac{1}{3}})}{3})$

Step 5.14.2

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 x^{- \frac{4}{3} - \frac{1}{3}}}{3})$

Step 5.14.3

Combine the numerators over the common denominator.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 x^{\frac{- 4 - 1}{3}}}{3})$

Step 5.14.4

Subtract $1$ from $- 4$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 x^{\frac{- 5}{3}}}{3})$

Step 5.14.5

Move the negative in front of the fraction.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2 x^{- \frac{5}{3}}}{3})$

Step 5.15

Move $x^{- \frac{5}{3}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} - 3 (- \frac{2}{3 x^{\frac{5}{3}}})$

Step 5.16

Multiply $- 1$ by $- 3$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + 3 \frac{2}{3 x^{\frac{5}{3}}}$

Step 5.17

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

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{3 \cdot 2}{3 x^{\frac{5}{3}}}$

Step 5.18

Multiply $3$ by $2$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{6}{3 x^{\frac{5}{3}}}$

Step 5.19

Factor $3$ out of $6$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{3 \cdot 2}{3 x^{\frac{5}{3}}}$

Step 5.20

Cancel the common factors.

Tap for more steps...

Step 5.20.1

Factor $3$ out of $3 x^{\frac{5}{3}}$ .

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{3 \cdot 2}{3 (x^{\frac{5}{3}})}$

Step 5.20.2

Cancel the common factor.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{3 \cdot 2}{3 x^{\frac{5}{3}}}$

Step 5.20.3

Rewrite the expression.

$\frac{3}{2 x^{\frac{1}{2}}} - \frac{15}{4 x^{\frac{1}{4}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{2}{x^{\frac{5}{3}}}$

Step 6

Reorder terms.

$\frac{3}{2 x^{\frac{1}{2}}} + \frac{26}{5 x^{\frac{3}{5}}} + \frac{2}{x^{\frac{5}{3}}} - \frac{15}{4 x^{\frac{1}{4}}}$