Calculus Examples

$\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} x^{- 2} - 8 (8 x - 3)}{21}$

Step 1

Simplify the numerator.

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Step 1.1

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

$\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} \frac{1}{x^{2}} - 8 (8 x - 3)}{21}$

Step 1.2

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

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Step 1.2.1

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

$\frac{\frac{- 3}{x^{2}} {(8 x - 3)}^{\frac{1}{3}} - 8 (8 x - 3)}{21}$

Step 1.2.2

Combine $\frac{- 3}{x^{2}}$ and ${(8 x - 3)}^{\frac{1}{3}}$ .

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 8 (8 x - 3)}{21}$

Step 1.3

Move the negative in front of the fraction.

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 8 (8 x - 3)}{21}$

Step 1.4

Apply the distributive property.

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 8 (8 x) - 8 \cdot - 3}{21}$

Step 1.5

Multiply $8$ by $- 8$ .

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 64 x - 8 \cdot - 3}{21}$

Step 1.6

Multiply $- 8$ by $- 3$ .

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 64 x + 24}{21}$

Step 1.7

To write $- 64 x$ as a fraction with a common denominator, multiply by $\frac{x^{2}}{x^{2}}$ .

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} - 64 x \cdot \frac{x^{2}}{x^{2}} + 24}{21}$

Step 1.8

Combine $- 64 x$ and $\frac{x^{2}}{x^{2}}$ .

$\frac{- \frac{3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} + \frac{- 64 x \cdot x^{2}}{x^{2}} + 24}{21}$

Step 1.9

Combine the numerators over the common denominator.

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x \cdot x^{2}}{x^{2}} + 24}{21}$

Step 1.10

To write $24$ as a fraction with a common denominator, multiply by $\frac{x^{2}}{x^{2}}$ .

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x \cdot x^{2}}{x^{2}} + \frac{24 x^{2}}{x^{2}}}{21}$

Step 1.11

Combine the numerators over the common denominator.

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x \cdot x^{2} + 24 x^{2}}{x^{2}}}{21}$

Step 1.12

Rewrite $\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x \cdot x^{2} + 24 x^{2}}{x^{2}}$ in a factored form.

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Step 1.12.1

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

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Step 1.12.1.1

Move $x^{2}$ .

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 (x^{2} x) + 24 x^{2}}{x^{2}}}{21}$

Step 1.12.1.2

Multiply $x^{2}$ by $x$ .

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Step 1.12.1.2.1

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

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 (x^{2} x^{1}) + 24 x^{2}}{x^{2}}}{21}$

Step 1.12.1.2.2

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

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x^{2 + 1} + 24 x^{2}}{x^{2}}}{21}$

Step 1.12.1.3

Add $2$ and $1$ .

$\frac{\frac{- 3 {(8 x - 3)}^{\frac{1}{3}} - 64 x^{3} + 24 x^{2}}{x^{2}}}{21}$

Step 1.12.2

Reorder terms.

$\frac{\frac{- 64 x^{3} + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}}}{21}$

Step 2

Multiply the numerator by the reciprocal of the denominator.

$\frac{- 64 x^{3} + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}} \cdot \frac{1}{21}$

Step 3

Multiply $\frac{- 64 x^{3} + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2}}$ by $\frac{1}{21}$ .

$\frac{- 64 x^{3} + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{x^{2} \cdot 21}$

Step 4

Move $21$ to the left of $x^{2}$ .

$\frac{- 64 x^{3} + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{21 \cdot x^{2}}$

Step 5

Factor $- 1$ out of $- 64 x^{3}$ .

$\frac{- (64 x^{3}) + 24 x^{2} - 3 {(8 x - 3)}^{\frac{1}{3}}}{21 x^{2}}$

Step 6

Factor $- 1$ out of $24 x^{2}$ .

$\frac{- (64 x^{3}) - (- 24 x^{2}) - 3 {(8 x - 3)}^{\frac{1}{3}}}{21 x^{2}}$

Step 7

Factor $- 1$ out of $- (64 x^{3}) - (- 24 x^{2})$ .

$\frac{- (64 x^{3} - 24 x^{2}) - 3 {(8 x - 3)}^{\frac{1}{3}}}{21 x^{2}}$

Step 8

Factor $- 1$ out of $- 3 {(8 x - 3)}^{\frac{1}{3}}$ .

$\frac{- (64 x^{3} - 24 x^{2}) - (3 {(8 x - 3)}^{\frac{1}{3}})}{21 x^{2}}$

Step 9

Factor $- 1$ out of $- (64 x^{3} - 24 x^{2}) - (3 {(8 x - 3)}^{\frac{1}{3}})$ .

$\frac{- (64 x^{3} - 24 x^{2} + 3 {(8 x - 3)}^{\frac{1}{3}})}{21 x^{2}}$

Step 10

Simplify the expression.

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Step 10.1

Rewrite $- (64 x^{3} - 24 x^{2} + 3 {(8 x - 3)}^{\frac{1}{3}})$ as $- 1 (64 x^{3} - 24 x^{2} + 3 {(8 x - 3)}^{\frac{1}{3}})$ .

$\frac{- 1 (64 x^{3} - 24 x^{2} + 3 {(8 x - 3)}^{\frac{1}{3}})}{21 x^{2}}$

Step 10.2

Move the negative in front of the fraction.

$- \frac{64 x^{3} - 24 x^{2} + 3 {(8 x - 3)}^{\frac{1}{3}}}{21 x^{2}}$