Calculus Examples

$y = \frac{x^{2} + 8 x + 3}{\sqrt{x}}$

Step 1

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

$y = \frac{x^{2} + 8 x + 3}{x^{\frac{1}{2}}}$

Step 2

Differentiate both sides of the equation.

$\frac{d}{d x} (y) = \frac{d}{d x} (\frac{x^{2} + 8 x + 3}{x^{\frac{1}{2}}})$

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

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 $f (x) = x^{2} + 8 x + 3$ and $g (x) = x^{\frac{1}{2}}$ .

$\frac{x^{\frac{1}{2}} \frac{d}{d x} [x^{2} + 8 x + 3] - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{{(x^{\frac{1}{2}})}^{2}}$

Step 4.2

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

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Step 4.2.1

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

$\frac{x^{\frac{1}{2}} \frac{d}{d x} [x^{2} + 8 x + 3] - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x^{\frac{1}{2} \cdot 2}}$

Step 4.2.2

Cancel the common factor of $2$ .

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Step 4.2.2.1

Cancel the common factor.

$\frac{x^{\frac{1}{2}} \frac{d}{d x} [x^{2} + 8 x + 3] - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x^{\frac{1}{2} \cdot 2}}$

Step 4.2.2.2

Rewrite the expression.

$\frac{x^{\frac{1}{2}} \frac{d}{d x} [x^{2} + 8 x + 3] - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x^{1}}$

Step 4.3

Simplify.

$\frac{x^{\frac{1}{2}} \frac{d}{d x} [x^{2} + 8 x + 3] - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.4

By the Sum Rule, the derivative of $x^{2} + 8 x + 3$ with respect to $x$ is $\frac{d}{d x} [x^{2}] + \frac{d}{d x} [8 x] + \frac{d}{d x} [3]$ .

$\frac{x^{\frac{1}{2}} (\frac{d}{d x} [x^{2}] + \frac{d}{d x} [8 x] + \frac{d}{d x} [3]) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.5

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

$\frac{x^{\frac{1}{2}} (2 x + \frac{d}{d x} [8 x] + \frac{d}{d x} [3]) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.6

Since $8$ is constant with respect to $x$ , the derivative of $8 x$ with respect to $x$ is $8 \frac{d}{d x} [x]$ .

$\frac{x^{\frac{1}{2}} (2 x + 8 \frac{d}{d x} [x] + \frac{d}{d x} [3]) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.7

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

$\frac{x^{\frac{1}{2}} (2 x + 8 \cdot 1 + \frac{d}{d x} [3]) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.8

Multiply $8$ by $1$ .

$\frac{x^{\frac{1}{2}} (2 x + 8 + \frac{d}{d x} [3]) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.9

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

$\frac{x^{\frac{1}{2}} (2 x + 8 + 0) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.10

Add $2 x + 8$ and $0$ .

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) \frac{d}{d x} [x^{\frac{1}{2}}]}{x}$

Step 4.11

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

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{1}{2} - 1})}{x}$

Step 4.12

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

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{1}{2} - 1 \cdot \frac{2}{2}})}{x}$

Step 4.13

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

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}})}{x}$

Step 4.14

Combine the numerators over the common denominator.

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{1 - 1 \cdot 2}{2}})}{x}$

Step 4.15

Simplify the numerator.

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Step 4.15.1

Multiply $- 1$ by $2$ .

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{1 - 2}{2}})}{x}$

Step 4.15.2

Subtract $2$ from $1$ .

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{\frac{- 1}{2}})}{x}$

Step 4.16

Move the negative in front of the fraction.

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) (\frac{1}{2} x^{- \frac{1}{2}})}{x}$

Step 4.17

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

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) \frac{x^{- \frac{1}{2}}}{2}}{x}$

Step 4.18

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

$\frac{x^{\frac{1}{2}} (2 x + 8) - (x^{2} + 8 x + 3) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19

Simplify.

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Step 4.19.1

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (2 x) + x^{\frac{1}{2}} \cdot 8 - (x^{2} + 8 x + 3) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.2

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (2 x) + x^{\frac{1}{2}} \cdot 8 + (- x^{2} - (8 x) - 1 \cdot 3) \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.3

Apply the distributive property.

$\frac{x^{\frac{1}{2}} (2 x) + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4

Simplify the numerator.

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Step 4.19.4.1

Simplify each term.

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Step 4.19.4.1.1

Rewrite using the commutative property of multiplication.

$\frac{2 x^{\frac{1}{2}} x + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2

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

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Step 4.19.4.1.2.1

Move $x$ .

$\frac{2 (x \cdot x^{\frac{1}{2}}) + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2.2

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

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Step 4.19.4.1.2.2.1

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

$\frac{2 (x^{1} x^{\frac{1}{2}}) + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2.2.2

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

$\frac{2 x^{1 + \frac{1}{2}} + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2.3

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

$\frac{2 x^{\frac{2}{2} + \frac{1}{2}} + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2.4

Combine the numerators over the common denominator.

$\frac{2 x^{\frac{2 + 1}{2}} + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.2.5

Add $2$ and $1$ .

$\frac{2 x^{\frac{3}{2}} + x^{\frac{1}{2}} \cdot 8 - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.3

Move $8$ to the left of $x^{\frac{1}{2}}$ .

$\frac{2 x^{\frac{3}{2}} + 8 \cdot x^{\frac{1}{2}} - x^{2} \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.4

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

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Step 4.19.4.1.4.1

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} + x^{\frac{1}{2}} (- x^{\frac{3}{2}}) \frac{1}{2 x^{\frac{1}{2}}} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.4.2

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} + x^{\frac{1}{2}} (- x^{\frac{3}{2}}) \frac{1}{x^{\frac{1}{2}} \cdot 2} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.4.3

Cancel the common factor.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} + x^{\frac{1}{2}} (- x^{\frac{3}{2}}) \frac{1}{x^{\frac{1}{2}} \cdot 2} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.4.4

Rewrite the expression.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - x^{\frac{3}{2}} \frac{1}{2} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.5

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - (8 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.6

Multiply $8$ by $- 1$ .

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 8 x \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.7

Cancel the common factor of $2$ .

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Step 4.19.4.1.7.1

Factor $2$ out of $- 8 x$ .

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + 2 (- 4 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.7.2

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + 2 (- 4 x) \frac{1}{2 (x^{\frac{1}{2}})} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.7.3

Cancel the common factor.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + 2 (- 4 x) \frac{1}{2 x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.7.4

Rewrite the expression.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 4 x \frac{1}{x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.8

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x \frac{- 4}{x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.9

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + \frac{x \cdot - 4}{x^{\frac{1}{2}}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.10

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x \cdot - 4 x^{- \frac{1}{2}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11

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

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Step 4.19.4.1.11.1

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{- \frac{1}{2}} x \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11.2

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

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Step 4.19.4.1.11.2.1

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{- \frac{1}{2}} x^{1} \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11.2.2

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{- \frac{1}{2} + 1} \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11.3

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{- \frac{1}{2} + \frac{2}{2}} \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11.4

Combine the numerators over the common denominator.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{\frac{- 1 + 2}{2}} \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.11.5

Add $- 1$ and $2$ .

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} + x^{\frac{1}{2}} \cdot - 4 - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.12

Move $- 4$ to the left of $x^{\frac{1}{2}}$ .

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 4 \cdot x^{\frac{1}{2}} - 1 \cdot 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.13

Multiply $- 1$ by $3$ .

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - 3 \frac{1}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.14

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

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} + \frac{- 3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.1.15

Move the negative in front of the fraction.

$\frac{2 x^{\frac{3}{2}} + 8 x^{\frac{1}{2}} - \frac{x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.2

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

$\frac{8 x^{\frac{1}{2}} + 2 x^{\frac{3}{2}} \cdot \frac{2}{2} - \frac{x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.3

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

$\frac{8 x^{\frac{1}{2}} + \frac{2 x^{\frac{3}{2}} \cdot 2}{2} - \frac{x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.4

Combine the numerators over the common denominator.

$\frac{8 x^{\frac{1}{2}} + \frac{2 x^{\frac{3}{2}} \cdot 2 - x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5

Simplify each term.

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Step 4.19.4.5.1

Simplify the numerator.

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Step 4.19.4.5.1.1

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

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Step 4.19.4.5.1.1.1

Move $x^{\frac{3}{2}}$ .

$\frac{8 x^{\frac{1}{2}} + \frac{2 \cdot 2 x^{\frac{3}{2}} - x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.1.1.2

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

$\frac{8 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} (2 \cdot 2) - x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.1.1.3

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

$\frac{8 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} (2 \cdot 2) + x^{\frac{3}{2}} \cdot - 1}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.1.1.4

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

$\frac{8 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} (2 \cdot 2 - 1)}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.1.2

Multiply $2$ by $2$ .

$\frac{8 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} (4 - 1)}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.1.3

Subtract $1$ from $4$ .

$\frac{8 x^{\frac{1}{2}} + \frac{x^{\frac{3}{2}} \cdot 3}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.5.2

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

$\frac{8 x^{\frac{1}{2}} + \frac{3 x^{\frac{3}{2}}}{2} - 4 x^{\frac{1}{2}} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$

Step 4.19.4.6

Subtract $4 x^{\frac{1}{2}}$ from $8 x^{\frac{1}{2}}$ .

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

Step 4.19.5

Combine terms.

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Step 4.19.5.1

Multiply $\frac{4 x^{\frac{1}{2}} + \frac{3 x^{\frac{3}{2}}}{2} - \frac{3}{2 x^{\frac{1}{2}}}}{x}$ by $\frac{2}{2}$ .

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

Step 4.19.5.2

Combine.

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

Step 4.19.5.3

Apply the distributive property.

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

Step 4.19.5.4

Cancel the common factor of $2$ .

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Step 4.19.5.4.1

Cancel the common factor.

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

Step 4.19.5.4.2

Rewrite the expression.

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

Step 4.19.5.5

Multiply $4$ by $2$ .

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + 2 (- \frac{3}{2 x^{\frac{1}{2}}})}{2 x}$

Step 4.19.5.6

Multiply $- 1$ by $2$ .

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} - 2 \frac{3}{2 x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.7

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

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{- 2 \cdot 3}{2 x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.8

Multiply $- 2$ by $3$ .

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{- 6}{2 x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.9

Factor $2$ out of $- 6$ .

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{2 \cdot - 3}{2 x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.10

Cancel the common factors.

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Step 4.19.5.10.1

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

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{2 \cdot - 3}{2 (x^{\frac{1}{2}})}}{2 x}$

Step 4.19.5.10.2

Cancel the common factor.

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{2 \cdot - 3}{2 x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.10.3

Rewrite the expression.

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} + \frac{- 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.5.11

Move the negative in front of the fraction.

$\frac{8 x^{\frac{1}{2}} + 3 x^{\frac{3}{2}} - \frac{3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6

Simplify the numerator.

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Step 4.19.6.1

To write $8 x^{\frac{1}{2}}$ as a fraction with a common denominator, multiply by $\frac{x^{\frac{1}{2}}}{x^{\frac{1}{2}}}$ .

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{\frac{1}{2}} x^{\frac{1}{2}}}{x^{\frac{1}{2}}} - \frac{3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.2

Combine the numerators over the common denominator.

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{\frac{1}{2}} x^{\frac{1}{2}} - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3

Simplify the numerator.

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Step 4.19.6.3.1

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

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Step 4.19.6.3.1.1

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

$\frac{3 x^{\frac{3}{2}} + \frac{8 (x^{\frac{1}{2}} x^{\frac{1}{2}}) - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3.1.2

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

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{\frac{1}{2} + \frac{1}{2}} - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3.1.3

Combine the numerators over the common denominator.

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{\frac{1 + 1}{2}} - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3.1.4

Add $1$ and $1$ .

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{\frac{2}{2}} - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3.1.5

Divide $2$ by $2$ .

$\frac{3 x^{\frac{3}{2}} + \frac{8 x^{1} - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.3.2

Simplify $8 x^{1}$ .

$\frac{3 x^{\frac{3}{2}} + \frac{8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.4

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

$\frac{\frac{3 x^{\frac{3}{2}} x^{\frac{1}{2}}}{x^{\frac{1}{2}}} + \frac{8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.5

Combine the numerators over the common denominator.

$\frac{\frac{3 x^{\frac{3}{2}} x^{\frac{1}{2}} + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6

Simplify the numerator.

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Step 4.19.6.6.1

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

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Step 4.19.6.6.1.1

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

$\frac{\frac{3 (x^{\frac{1}{2}} x^{\frac{3}{2}}) + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.1.2

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

$\frac{\frac{3 x^{\frac{1}{2} + \frac{3}{2}} + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.1.3

Combine the numerators over the common denominator.

$\frac{\frac{3 x^{\frac{1 + 3}{2}} + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.1.4

Add $1$ and $3$ .

$\frac{\frac{3 x^{\frac{4}{2}} + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.1.5

Divide $4$ by $2$ .

$\frac{\frac{3 x^{2} + 8 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.2

Factor by grouping.

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Step 4.19.6.6.2.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 3 \cdot - 3 = - 9$ and whose sum is $b = 8$ .

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Step 4.19.6.6.2.1.1

Factor $8$ out of $8 x$ .

$\frac{\frac{3 x^{2} + 8 (x) - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.2.1.2

Rewrite $8$ as $- 1$ plus $9$

$\frac{\frac{3 x^{2} + (- 1 + 9) x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.2.1.3

Apply the distributive property.

$\frac{\frac{3 x^{2} - 1 x + 9 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.2.2

Factor out the greatest common factor from each group.

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Step 4.19.6.6.2.2.1

Group the first two terms and the last two terms.

$\frac{\frac{(3 x^{2} - 1 x) + 9 x - 3}{x^{\frac{1}{2}}}}{2 x}$

Step 4.19.6.6.2.2.2

Factor out the greatest common factor (GCF) from each group.

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

Step 4.19.6.6.2.3

Factor the polynomial by factoring out the greatest common factor, $3 x - 1$ .

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

Step 4.19.7

Multiply the numerator by the reciprocal of the denominator.

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

Step 4.19.8

Combine.

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

Step 4.19.9

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

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Step 4.19.9.1

Move $x$ .

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

Step 4.19.9.2

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

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Step 4.19.9.2.1

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

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

Step 4.19.9.2.2

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

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

Step 4.19.9.3

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

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

Step 4.19.9.4

Combine the numerators over the common denominator.

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

Step 4.19.9.5

Add $2$ and $1$ .

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

Step 4.19.10

Multiply $(3 x - 1) (x + 3)$ by $1$ .

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

Step 4.19.11

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

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

Step 5

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

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

Step 6

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

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