Calculus Examples

$f (x) = \frac{- 5 x^{2} - 7 x - 7}{\sqrt{x}}$

Step 1

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

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

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 $f (x) = - 5 x^{2} - 7 x - 7$ and $g (x) = x^{\frac{1}{2}}$ .

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

Step 3

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

Tap for more steps...

Step 3.1

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

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

Step 3.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.2.1

Cancel the common factor.

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

Step 3.2.2

Rewrite the expression.

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

Step 4

Simplify.

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

Step 5

By the Sum Rule, the derivative of $- 5 x^{2} - 7 x - 7$ with respect to $x$ is $\frac{d}{d x} [- 5 x^{2}] + \frac{d}{d x} [- 7 x] + \frac{d}{d x} [- 7]$ .

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

Step 6

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

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

Step 7

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

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

Step 8

Multiply $2$ by $- 5$ .

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

Step 9

Since $- 7$ is constant with respect to $x$ , the derivative of $- 7 x$ with respect to $x$ is $- 7 \frac{d}{d x} [x]$ .

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

Step 10

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7 \cdot 1 + \frac{d}{d x} [- 7]) - (- 5 x^{2} - 7 x - 7) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 11

Multiply $- 7$ by $1$ .

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

Step 12

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7 + 0) - (- 5 x^{2} - 7 x - 7) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 13

Add $- 10 x - 7$ and $0$ .

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 14

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{1}{2} - 1})}{x}$

Step 15

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{1}{2} - 1 \cdot \frac{2}{2}})}{x}$

Step 16

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}})}{x}$

Step 17

Combine the numerators over the common denominator.

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{1 - 1 \cdot 2}{2}})}{x}$

Step 18

Simplify the numerator.

Tap for more steps...

Step 18.1

Multiply $- 1$ by $2$ .

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{1 - 2}{2}})}{x}$

Step 18.2

Subtract $2$ from $1$ .

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{\frac{- 1}{2}})}{x}$

Step 19

Move the negative in front of the fraction.

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) (\frac{1}{2} x^{- \frac{1}{2}})}{x}$

Step 20

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) \frac{x^{- \frac{1}{2}}}{2}}{x}$

Step 21

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

$\frac{x^{\frac{1}{2}} (- 10 x - 7) - (- 5 x^{2} - 7 x - 7) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22

Simplify.

Tap for more steps...

Step 22.1

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (- 10 x) + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2} - 7 x - 7) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.2

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (- 10 x) + x^{\frac{1}{2}} \cdot - 7 + (- (- 5 x^{2}) - (- 7 x) - - 7) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.3

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (- 10 x) + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4

Simplify the numerator.

Tap for more steps...

Step 22.4.1

Simplify each term.

Tap for more steps...

Step 22.4.1.1

Rewrite using the commutative property of multiplication.

$\frac{- 10 x^{\frac{1}{2}} x + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2

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

Tap for more steps...

Step 22.4.1.2.1

Move $x$ .

$\frac{- 10 (x \cdot x^{\frac{1}{2}}) + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2.2

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

Tap for more steps...

Step 22.4.1.2.2.1

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

$\frac{- 10 (x^{1} x^{\frac{1}{2}}) + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2.2.2

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

$\frac{- 10 x^{1 + \frac{1}{2}} + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2.3

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

$\frac{- 10 x^{\frac{2}{2} + \frac{1}{2}} + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2.4

Combine the numerators over the common denominator.

$\frac{- 10 x^{\frac{2 + 1}{2}} + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.2.5

Add $2$ and $1$ .

$\frac{- 10 x^{\frac{3}{2}} + x^{\frac{1}{2}} \cdot - 7 - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.3

Move $- 7$ to the left of $x^{\frac{1}{2}}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 \cdot x^{\frac{1}{2}} - (- 5 x^{2}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.4

Multiply $- 5$ by $- 1$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + 5 x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.5

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

Tap for more steps...

Step 22.4.1.5.1

Factor $x^{\frac{1}{2}}$ out of $5 x^{2}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + x^{\frac{1}{2}} (5 x^{\frac{3}{2}}) \frac{1}{2 x^{\frac{1}{2}}} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.5.2

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + x^{\frac{1}{2}} (5 x^{\frac{3}{2}}) \frac{1}{x^{\frac{1}{2}} \cdot 2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.5.3

Cancel the common factor.

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + x^{\frac{1}{2}} (5 x^{\frac{3}{2}}) \frac{1}{x^{\frac{1}{2}} \cdot 2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.5.4

Rewrite the expression.

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + 5 x^{\frac{3}{2}} \frac{1}{2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.6

Combine $5$ and $\frac{1}{2}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + x^{\frac{3}{2}} \frac{5}{2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.7

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} \cdot 5}{2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.8

Move $5$ to the left of $x^{\frac{3}{2}}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 \cdot x^{\frac{3}{2}}}{2} - (- 7 x) \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.9

Multiply $- 7$ by $- 1$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + 7 x \frac{1}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.10

Multiply $7 x \frac{1}{2 x^{\frac{1}{2}}}$ .

Tap for more steps...

Step 22.4.1.10.1

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + x \frac{7}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.10.2

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x \cdot 7}{2 x^{\frac{1}{2}}} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.11

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x \cdot 7 x^{- \frac{1}{2}}}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12

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

Tap for more steps...

Step 22.4.1.12.1

Move $x^{- \frac{1}{2}}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{- \frac{1}{2}} x \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12.2

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

Tap for more steps...

Step 22.4.1.12.2.1

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{- \frac{1}{2}} x^{1} \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12.2.2

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{- \frac{1}{2} + 1} \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12.3

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{- \frac{1}{2} + \frac{2}{2}} \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12.4

Combine the numerators over the common denominator.

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{\frac{- 1 + 2}{2}} \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.12.5

Add $- 1$ and $2$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{x^{\frac{1}{2}} \cdot 7}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.13

Move $7$ to the left of $x^{\frac{1}{2}}$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{7 \cdot x^{\frac{1}{2}}}{2} - - 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.14

Multiply $- 1$ by $- 7$ .

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{7 x^{\frac{1}{2}}}{2} + 7 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.1.15

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

$\frac{- 10 x^{\frac{3}{2}} - 7 x^{\frac{1}{2}} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.2

To write $- 10 x^{\frac{3}{2}}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{- 7 x^{\frac{1}{2}} - 10 x^{\frac{3}{2}} \cdot \frac{2}{2} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.3

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

$\frac{- 7 x^{\frac{1}{2}} + \frac{- 10 x^{\frac{3}{2}} \cdot 2}{2} + \frac{5 x^{\frac{3}{2}}}{2} + \frac{7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.4

Combine the numerators over the common denominator.

$\frac{- 7 x^{\frac{1}{2}} + \frac{- 10 x^{\frac{3}{2}} \cdot 2 + 5 x^{\frac{3}{2}}}{2} + \frac{7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.5

Combine the numerators over the common denominator.

$\frac{- 7 x^{\frac{1}{2}} + \frac{- 10 x^{\frac{3}{2}} \cdot 2 + 5 x^{\frac{3}{2}} + 7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.6

Multiply $2$ by $- 10$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{- 20 x^{\frac{3}{2}} + 5 x^{\frac{3}{2}} + 7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.7

Add $- 20 x^{\frac{3}{2}}$ and $5 x^{\frac{3}{2}}$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{- 15 x^{\frac{3}{2}} + 7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.8

Simplify the numerator.

Tap for more steps...

Step 22.4.8.1

Factor $x^{\frac{1}{2}}$ out of $- 15 x^{\frac{3}{2}} + 7 x^{\frac{1}{2}}$ .

Tap for more steps...

Step 22.4.8.1.1

Factor $x^{\frac{1}{2}}$ out of $- 15 x^{\frac{3}{2}}$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{x^{\frac{1}{2}} (- 15 x^{\frac{2}{2}}) + 7 x^{\frac{1}{2}}}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.8.1.2

Factor $x^{\frac{1}{2}}$ out of $7 x^{\frac{1}{2}}$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{x^{\frac{1}{2}} (- 15 x^{\frac{2}{2}}) + x^{\frac{1}{2}} \cdot 7}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.8.1.3

Factor $x^{\frac{1}{2}}$ out of $x^{\frac{1}{2}} (- 15 x^{\frac{2}{2}}) + x^{\frac{1}{2}} \cdot 7$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{x^{\frac{1}{2}} (- 15 x^{\frac{2}{2}} + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.8.2

Divide $2$ by $2$ .

$\frac{- 7 x^{\frac{1}{2}} + \frac{x^{\frac{1}{2}} (- 15 x^{1} + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.8.3

Simplify.

$\frac{- 7 x^{\frac{1}{2}} + \frac{x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.9

To write $- 7 x^{\frac{1}{2}}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{- 7 x^{\frac{1}{2}} \cdot \frac{2}{2} + \frac{x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.10

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

$\frac{\frac{- 7 x^{\frac{1}{2}} \cdot 2}{2} + \frac{x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.11

Combine the numerators over the common denominator.

$\frac{\frac{- 7 x^{\frac{1}{2}} \cdot 2 + x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.12

Simplify the numerator.

Tap for more steps...

Step 22.4.12.1

Factor $x^{\frac{1}{2}}$ out of $- 7 x^{\frac{1}{2}} \cdot 2 + x^{\frac{1}{2}} (- 15 x + 7)$ .

Tap for more steps...

Step 22.4.12.1.1

Move $x^{\frac{1}{2}}$ .

$\frac{\frac{- 7 \cdot 2 x^{\frac{1}{2}} + x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.12.1.2

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

$\frac{\frac{x^{\frac{1}{2}} (- 7 \cdot 2) + x^{\frac{1}{2}} (- 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.12.1.3

Factor $x^{\frac{1}{2}}$ out of $x^{\frac{1}{2}} (- 7 \cdot 2) + x^{\frac{1}{2}} (- 15 x + 7)$ .

$\frac{\frac{x^{\frac{1}{2}} (- 7 \cdot 2 - 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.12.2

Multiply $- 7$ by $2$ .

$\frac{\frac{x^{\frac{1}{2}} (- 14 - 15 x + 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.12.3

Add $- 14$ and $7$ .

$\frac{\frac{x^{\frac{1}{2}} (- 15 x - 7)}{2} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.13

To write $\frac{x^{\frac{1}{2}} (- 15 x - 7)}{2}$ as a fraction with a common denominator, multiply by $\frac{x^{\frac{1}{2}}}{x^{\frac{1}{2}}}$ .

$\frac{\frac{x^{\frac{1}{2}} (- 15 x - 7)}{2} \cdot \frac{x^{\frac{1}{2}}}{x^{\frac{1}{2}}} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.14

Multiply $\frac{x^{\frac{1}{2}} (- 15 x - 7)}{2}$ by $\frac{x^{\frac{1}{2}}}{x^{\frac{1}{2}}}$ .

$\frac{\frac{x^{\frac{1}{2}} (- 15 x - 7) x^{\frac{1}{2}}}{2 x^{\frac{1}{2}}} + \frac{7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.15

Combine the numerators over the common denominator.

$\frac{\frac{x^{\frac{1}{2}} (- 15 x - 7) x^{\frac{1}{2}} + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16

Simplify the numerator.

Tap for more steps...

Step 22.4.16.1

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

Tap for more steps...

Step 22.4.16.1.1

Move $x^{\frac{1}{2}}$ .

$\frac{\frac{x^{\frac{1}{2}} x^{\frac{1}{2}} (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.1.2

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

$\frac{\frac{x^{\frac{1}{2} + \frac{1}{2}} (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.1.3

Combine the numerators over the common denominator.

$\frac{\frac{x^{\frac{1 + 1}{2}} (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.1.4

Add $1$ and $1$ .

$\frac{\frac{x^{\frac{2}{2}} (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.1.5

Divide $2$ by $2$ .

$\frac{\frac{x^{1} (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.2

Simplify $x^{1} (- 15 x - 7)$ .

$\frac{\frac{x (- 15 x - 7) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.3

Apply the distributive property.

$\frac{\frac{x (- 15 x) + x \cdot - 7 + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.4

Rewrite using the commutative property of multiplication.

$\frac{\frac{- 15 x \cdot x + x \cdot - 7 + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.5

Move $- 7$ to the left of $x$ .

$\frac{\frac{- 15 x \cdot x - 7 \cdot x + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.6

Multiply $x$ by $x$ by adding the exponents.

Tap for more steps...

Step 22.4.16.6.1

Move $x$ .

$\frac{\frac{- 15 (x \cdot x) - 7 \cdot x + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.16.6.2

Multiply $x$ by $x$ .

$\frac{\frac{- 15 x^{2} - 7 \cdot x + 7}{2 x^{\frac{1}{2}}}}{x}$

$\frac{\frac{- 15 x^{2} - 7 x + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.17

Factor $- 1$ out of $- 15 x^{2}$ .

$\frac{\frac{- (15 x^{2}) - 7 x + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.18

Factor $- 1$ out of $- 7 x$ .

$\frac{\frac{- (15 x^{2}) - (7 x) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.19

Factor $- 1$ out of $- (15 x^{2}) - (7 x)$ .

$\frac{\frac{- (15 x^{2} + 7 x) + 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.20

Rewrite $7$ as $- 1 (- 7)$ .

$\frac{\frac{- (15 x^{2} + 7 x) - 1 (- 7)}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.21

Factor $- 1$ out of $- (15 x^{2} + 7 x) - 1 (- 7)$ .

$\frac{\frac{- (15 x^{2} + 7 x - 7)}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.22

Rewrite $- (15 x^{2} + 7 x - 7)$ as $- 1 (15 x^{2} + 7 x - 7)$ .

$\frac{\frac{- 1 (15 x^{2} + 7 x - 7)}{2 x^{\frac{1}{2}}}}{x}$

Step 22.4.23

Move the negative in front of the fraction.

$\frac{- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{1}{2}}}}{x}$

Step 22.5

Combine terms.

Tap for more steps...

Step 22.5.1

Rewrite $\frac{- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{1}{2}}}}{x}$ as a product.

$- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{1}{2}}} \cdot \frac{1}{x}$

Step 22.5.2

Multiply $\frac{1}{x}$ by $\frac{15 x^{2} + 7 x - 7}{2 x^{\frac{1}{2}}}$ .

$- \frac{15 x^{2} + 7 x - 7}{x (2 x^{\frac{1}{2}})}$

Step 22.5.3

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

$- \frac{15 x^{2} + 7 x - 7}{2 (x^{1} x^{\frac{1}{2}})}$

Step 22.5.4

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

$- \frac{15 x^{2} + 7 x - 7}{2 x^{1 + \frac{1}{2}}}$

Step 22.5.5

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

$- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{2}{2} + \frac{1}{2}}}$

Step 22.5.6

Combine the numerators over the common denominator.

$- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{2 + 1}{2}}}$

Step 22.5.7

Add $2$ and $1$ .

$- \frac{15 x^{2} + 7 x - 7}{2 x^{\frac{3}{2}}}$