Algebra Examples

$f (x) = 2 \sqrt[3]{\frac{1}{2} (x - 4)} + 3$

Step 1

Write $f (x) = 2 \sqrt[3]{\frac{1}{2} (x - 4)} + 3$ as an equation.

$y = 2 \sqrt[3]{\frac{1}{2} (x - 4)} + 3$

Step 2

Interchange the variables.

$x = 2 \sqrt[3]{\frac{1}{2} \cdot (y - 4)} + 3$

Step 3

Solve for $y$ .

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Step 3.1

Rewrite the equation as $2 \sqrt[3]{\frac{1}{2} \cdot (y - 4)} + 3 = x$ .

$2 \sqrt[3]{\frac{1}{2} \cdot (y - 4)} + 3 = x$

Step 3.2

Subtract $3$ from both sides of the equation.

$2 \sqrt[3]{\frac{1}{2} \cdot (y - 4)} = x - 3$

Step 3.3

To remove the radical on the left side of the equation, cube both sides of the equation.

${(2 \sqrt[3]{\frac{1}{2} \cdot (y - 4)})}^{3} = {(x - 3)}^{3}$

Step 3.4

Simplify each side of the equation.

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Step 3.4.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{\frac{1}{2} \cdot (y - 4)}$ as ${(\frac{1}{2} \cdot (y - 4))}^{\frac{1}{3}}$ .

${(2 {(\frac{1}{2} \cdot (y - 4))}^{\frac{1}{3}})}^{3} = {(x - 3)}^{3}$

Step 3.4.2

Simplify the left side.

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Step 3.4.2.1

Simplify ${(2 {(\frac{1}{2} \cdot (y - 4))}^{\frac{1}{3}})}^{3}$ .

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Step 3.4.2.1.1

Apply the distributive property.

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

Step 3.4.2.1.2

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

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

Step 3.4.2.1.3

Cancel the common factor of $2$ .

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Step 3.4.2.1.3.1

Factor $2$ out of $- 4$ .

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

Step 3.4.2.1.3.2

Cancel the common factor.

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

Step 3.4.2.1.3.3

Rewrite the expression.

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

Step 3.4.2.1.4

Simplify the expression.

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Step 3.4.2.1.4.1

Apply the product rule to $2 {(\frac{y}{2} - 2)}^{\frac{1}{3}}$ .

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

Step 3.4.2.1.4.2

Raise $2$ to the power of $3$ .

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

Step 3.4.2.1.4.3

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

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Step 3.4.2.1.4.3.1

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

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

Step 3.4.2.1.4.3.2

Cancel the common factor of $3$ .

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Step 3.4.2.1.4.3.2.1

Cancel the common factor.

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

Step 3.4.2.1.4.3.2.2

Rewrite the expression.

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

Step 3.4.2.1.5

Simplify.

$8 (\frac{y}{2} - 2) = {(x - 3)}^{3}$

Step 3.4.2.1.6

Apply the distributive property.

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

Step 3.4.2.1.7

Cancel the common factor of $2$ .

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Step 3.4.2.1.7.1

Factor $2$ out of $8$ .

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

Step 3.4.2.1.7.2

Cancel the common factor.

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

Step 3.4.2.1.7.3

Rewrite the expression.

$4 y + 8 \cdot - 2 = {(x - 3)}^{3}$

Step 3.4.2.1.8

Multiply $8$ by $- 2$ .

$4 y - 16 = {(x - 3)}^{3}$

Step 3.4.3

Simplify the right side.

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Step 3.4.3.1

Simplify ${(x - 3)}^{3}$ .

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Step 3.4.3.1.1

Use the Binomial Theorem.

$4 y - 16 = x^{3} + 3 x^{2} \cdot - 3 + 3 x {(- 3)}^{2} + {(- 3)}^{3}$

Step 3.4.3.1.2

Simplify each term.

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Step 3.4.3.1.2.1

Multiply $- 3$ by $3$ .

$4 y - 16 = x^{3} - 9 x^{2} + 3 x {(- 3)}^{2} + {(- 3)}^{3}$

Step 3.4.3.1.2.2

Raise $- 3$ to the power of $2$ .

$4 y - 16 = x^{3} - 9 x^{2} + 3 x \cdot 9 + {(- 3)}^{3}$

Step 3.4.3.1.2.3

Multiply $9$ by $3$ .

$4 y - 16 = x^{3} - 9 x^{2} + 27 x + {(- 3)}^{3}$

Step 3.4.3.1.2.4

Raise $- 3$ to the power of $3$ .

$4 y - 16 = x^{3} - 9 x^{2} + 27 x - 27$

Step 3.5

Solve for $y$ .

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Step 3.5.1

Move all terms not containing $y$ to the right side of the equation.

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Step 3.5.1.1

Add $16$ to both sides of the equation.

$4 y = x^{3} - 9 x^{2} + 27 x - 27 + 16$

Step 3.5.1.2

Add $- 27$ and $16$ .

$4 y = x^{3} - 9 x^{2} + 27 x - 11$

Step 3.5.2

Divide each term in $4 y = x^{3} - 9 x^{2} + 27 x - 11$ by $4$ and simplify.

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Step 3.5.2.1

Divide each term in $4 y = x^{3} - 9 x^{2} + 27 x - 11$ by $4$ .

$\frac{4 y}{4} = \frac{x^{3}}{4} + \frac{- 9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 11}{4}$

Step 3.5.2.2

Simplify the left side.

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Step 3.5.2.2.1

Cancel the common factor of $4$ .

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Step 3.5.2.2.1.1

Cancel the common factor.

$\frac{4 y}{4} = \frac{x^{3}}{4} + \frac{- 9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 11}{4}$

Step 3.5.2.2.1.2

Divide $y$ by $1$ .

$y = \frac{x^{3}}{4} + \frac{- 9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 11}{4}$

Step 3.5.2.3

Simplify the right side.

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Step 3.5.2.3.1

Simplify each term.

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Step 3.5.2.3.1.1

Move the negative in front of the fraction.

$y = \frac{x^{3}}{4} - \frac{(9) x^{2}}{4} + \frac{27 x}{4} + \frac{- 11}{4}$

Step 3.5.2.3.1.2

Move the negative in front of the fraction.

$y = \frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}$

Step 4

Replace $y$ with $f^{- 1} (x)$ to show the final answer.

$f^{- 1} (x) = \frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}$

Step 5

Verify if $f^{- 1} (x) = \frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}$ is the inverse of $f (x) = 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3$ .

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Step 5.1

To verify the inverse, check if $f^{- 1} (f (x)) = x$ and $f (f^{- 1} (x)) = x$ .

Step 5.2

Evaluate $f^{- 1} (f (x))$ .

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Step 5.2.1

Set up the composite result function.

$f^{- 1} (f (x))$

Step 5.2.2

Evaluate $f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)$ by substituting in the value of $f$ into $f^{- 1}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{{(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{3}}{4} - \frac{9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2}}{4} + \frac{27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}{4} - \frac{11}{4}$

Step 5.2.3

Combine the numerators over the common denominator.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{{(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4

Simplify each term.

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Step 5.2.4.1

Use the Binomial Theorem.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{{(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{3} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2

Simplify each term.

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Step 5.2.4.2.1

Apply the product rule to $2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{2^{3} {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{3} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.2

Raise $2$ to the power of $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{3} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.3

Rewrite ${\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{3}$ as $\frac{1}{2} \cdot (x - 4)$ .

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Step 5.2.4.2.3.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ as ${(\frac{1}{2} \cdot (x - 4))}^{\frac{1}{3}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 {({(\frac{1}{2} \cdot (x - 4))}^{\frac{1}{3}})}^{3} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.3.2

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 {(\frac{1}{2} \cdot (x - 4))}^{\frac{1}{3} \cdot 3} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.3.3

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 {(\frac{1}{2} \cdot (x - 4))}^{\frac{3}{3}} + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.3.4

Cancel the common factor of $3$ .

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Step 5.2.4.2.3.4.1

Cancel the common factor.

Step 5.2.4.2.3.4.2

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{1}{2} \cdot (x - 4)) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.3.5

Simplify.

Step 5.2.4.2.4

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{1}{2} x + \frac{1}{2} \cdot - 4) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.5

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{x}{2} + \frac{1}{2} \cdot - 4) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.6

Cancel the common factor of $2$ .

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Step 5.2.4.2.6.1

Factor $2$ out of $- 4$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{x}{2} + \frac{1}{2} \cdot (2 (- 2))) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.6.2

Cancel the common factor.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{x}{2} + \frac{1}{2} \cdot (2 \cdot - 2)) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.6.3

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{x}{2} - 2) + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.7

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{8 (\frac{x}{2}) + 8 \cdot - 2 + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.8

Cancel the common factor of $2$ .

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Step 5.2.4.2.8.1

Factor $2$ out of $8$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{2 (4) (\frac{x}{2}) + 8 \cdot - 2 + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.8.2

Cancel the common factor.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{2 \cdot (4 (\frac{x}{2})) + 8 \cdot - 2 + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.8.3

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 8 \cdot - 2 + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.9

Multiply $8$ by $- 2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})}^{2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.10

Apply the product rule to $2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (2^{2} {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{2}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.11

Raise $2$ to the power of $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{2}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.12

Rewrite ${\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{2}$ as $\sqrt[3]{{(\frac{1}{2} \cdot (x - 4))}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{{(\frac{1}{2} \cdot (x - 4))}^{2}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.13

Apply the product rule to $\frac{1}{2} \cdot (x - 4)$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{{(\frac{1}{2})}^{2} \cdot {(x - 4)}^{2}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.14

Apply the product rule to $\frac{1}{2}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{\frac{1^{2}}{2^{2}} \cdot {(x - 4)}^{2}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.15

One to any power is one.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{\frac{1}{2^{2}} \cdot {(x - 4)}^{2}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.16

Raise $2$ to the power of $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{\frac{1}{4} \cdot {(x - 4)}^{2}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.17

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 \sqrt[3]{\frac{{(x - 4)}^{2}}{4}}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.18

Rewrite $\sqrt[3]{\frac{{(x - 4)}^{2}}{4}}$ as $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.19

Multiply $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ by $\frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}} \cdot \frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20

Combine and simplify the denominator.

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Step 5.2.4.2.20.1

Multiply $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ by $\frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{\sqrt[3]{4} {\sqrt[3]{4}}^{2}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.2

Raise $\sqrt[3]{4}$ to the power of $1$ .

Step 5.2.4.2.20.3

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{1 + 2}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.4

Add $1$ and $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{3}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.5

Rewrite ${\sqrt[3]{4}}^{3}$ as $4$ .

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Step 5.2.4.2.20.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{4}$ as $4^{\frac{1}{3}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{(4^{\frac{1}{3}})}^{3}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.5.2

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4^{\frac{1}{3} \cdot 3}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.5.3

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4^{\frac{3}{3}}})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.5.4

Cancel the common factor of $3$ .

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Step 5.2.4.2.20.5.4.1

Cancel the common factor.

Step 5.2.4.2.20.5.4.2

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.20.5.5

Evaluate the exponent.

Step 5.2.4.2.21

Simplify the numerator.

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Step 5.2.4.2.21.1

Rewrite ${\sqrt[3]{4}}^{2}$ as $\sqrt[3]{4^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{4^{2}}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.21.2

Raise $4$ to the power of $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{16}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.21.3

Rewrite $16$ as $2^{3} \cdot 2$ .

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Step 5.2.4.2.21.3.1

Factor $8$ out of $16$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{8 (2)}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.21.3.2

Rewrite $8$ as $2^{3}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{2^{3} \cdot 2}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.21.4

Pull terms out from under the radical.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \cdot (2 \sqrt[3]{2})}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.21.5

Combine using the product rule for radicals.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (4 (\frac{2 \sqrt[3]{{(x - 4)}^{2} \cdot 2}}{4})) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.22

Cancel the common factor of $4$ .

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Step 5.2.4.2.22.1

Cancel the common factor.

Step 5.2.4.2.22.2

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 3 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2}) \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.23

Multiply $2$ by $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 6 \sqrt[3]{{(x - 4)}^{2} \cdot 2} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.24

Multiply $3$ by $6$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) \cdot 3^{2} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.25

Multiply $3$ by $3^{2}$ by adding the exponents.

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Step 5.2.4.2.25.1

Move $3^{2}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 3^{2} \cdot (3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})) + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.25.2

Multiply $3^{2}$ by $3$ .

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Step 5.2.4.2.25.2.1

Raise $3$ to the power of $1$ .

Step 5.2.4.2.25.2.2

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 3^{2 + 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.25.3

Add $2$ and $1$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 3^{3} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.26

Raise $3$ to the power of $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.27

Multiply $2$ by $27$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3^{3} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.2.28

Raise $3$ to the power of $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 16 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 27 - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.3

Add $- 16$ and $27$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 {(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2} + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.4

Rewrite ${(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)}^{2}$ as $(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 ((2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.5

Expand $(2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)$ using the FOIL Method.

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Step 5.2.4.5.1

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.5.2

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3)) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.5.3

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6

Simplify and combine like terms.

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Step 5.2.4.6.1

Simplify each term.

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Step 5.2.4.6.1.1

Multiply $2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)})$ .

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Step 5.2.4.6.1.1.1

Multiply $2$ by $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.1.2

Raise $\sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ to the power of $1$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\sqrt[3]{\frac{1}{2} \cdot (x - 4)} \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.1.3

Raise $\sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ to the power of $1$ .

Step 5.2.4.6.1.1.4

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{1 + 1} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.1.5

Add $1$ and $1$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 {\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{2} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.2

Rewrite ${\sqrt[3]{\frac{1}{2} \cdot (x - 4)}}^{2}$ as $\sqrt[3]{{(\frac{1}{2} \cdot (x - 4))}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{{(\frac{1}{2} \cdot (x - 4))}^{2}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.3

Apply the product rule to $\frac{1}{2} \cdot (x - 4)$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{{(\frac{1}{2})}^{2} \cdot {(x - 4)}^{2}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.4

Apply the product rule to $\frac{1}{2}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{\frac{1^{2}}{2^{2}} \cdot {(x - 4)}^{2}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.5

One to any power is one.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{\frac{1}{2^{2}} \cdot {(x - 4)}^{2}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.6

Raise $2$ to the power of $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{\frac{1}{4} \cdot {(x - 4)}^{2}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.7

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 \sqrt[3]{\frac{{(x - 4)}^{2}}{4}} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.8

Rewrite $\sqrt[3]{\frac{{(x - 4)}^{2}}{4}}$ as $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.9

Multiply $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ by $\frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}} \cdot \frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10

Combine and simplify the denominator.

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Step 5.2.4.6.1.10.1

Multiply $\frac{\sqrt[3]{{(x - 4)}^{2}}}{\sqrt[3]{4}}$ by $\frac{{\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{\sqrt[3]{4} {\sqrt[3]{4}}^{2}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.2

Raise $\sqrt[3]{4}$ to the power of $1$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{\sqrt[3]{4} {\sqrt[3]{4}}^{2}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.3

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{1 + 2}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.4

Add $1$ and $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{\sqrt[3]{4}}^{3}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5

Rewrite ${\sqrt[3]{4}}^{3}$ as $4$ .

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Step 5.2.4.6.1.10.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{4}$ as $4^{\frac{1}{3}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{{(4^{\frac{1}{3}})}^{3}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5.2

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4^{\frac{1}{3} \cdot 3}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5.3

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

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4^{\frac{3}{3}}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5.4

Cancel the common factor of $3$ .

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Step 5.2.4.6.1.10.5.4.1

Cancel the common factor.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4^{\frac{3}{3}}}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5.4.2

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.10.5.5

Evaluate the exponent.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} {\sqrt[3]{4}}^{2}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11

Simplify the numerator.

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Step 5.2.4.6.1.11.1

Rewrite ${\sqrt[3]{4}}^{2}$ as $\sqrt[3]{4^{2}}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{4^{2}}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11.2

Raise $4$ to the power of $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{16}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11.3

Rewrite $16$ as $2^{3} \cdot 2$ .

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Step 5.2.4.6.1.11.3.1

Factor $8$ out of $16$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{8 (2)}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11.3.2

Rewrite $8$ as $2^{3}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \sqrt[3]{2^{3} \cdot 2}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11.4

Pull terms out from under the radical.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{\sqrt[3]{{(x - 4)}^{2}} \cdot (2 \sqrt[3]{2})}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.11.5

Combine using the product rule for radicals.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (4 (\frac{2 \sqrt[3]{{(x - 4)}^{2} \cdot 2}}{4}) + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.12

Cancel the common factor of $4$ .

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Step 5.2.4.6.1.12.1

Cancel the common factor.

Step 5.2.4.6.1.12.2

Rewrite the expression.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} \cdot 3 + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.13

Multiply $3$ by $2$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.14

Multiply $2$ by $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3 \cdot 3) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.1.15

Multiply $3$ by $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 9) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.6.2

Add $6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ and $6 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 12 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 9) + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.7

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 (2 \sqrt[3]{{(x - 4)}^{2} \cdot 2}) - 9 (12 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) - 9 \cdot 9 + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.8

Simplify.

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Step 5.2.4.8.1

Multiply $2$ by $- 9$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 9 (12 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) - 9 \cdot 9 + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.8.2

Multiply $12$ by $- 9$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 9 \cdot 9 + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.8.3

Multiply $- 9$ by $9$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) - 11}{4}$

Step 5.2.4.9

Apply the distributive property.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 27 (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}) + 27 \cdot 3 - 11}{4}$

Step 5.2.4.10

Multiply $2$ by $27$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 27 \cdot 3 - 11}{4}$

Step 5.2.4.11

Multiply $27$ by $3$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 81 - 11}{4}$

Step 5.2.5

Simplify terms.

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Step 5.2.5.1

Combine the opposite terms in $4 x + 11 + 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 18 \sqrt[3]{{(x - 4)}^{2} \cdot 2} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 81 - 11$ .

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Step 5.2.5.1.1

Subtract $18 \sqrt[3]{{(x - 4)}^{2} \cdot 2}$ from $18 \sqrt[3]{{(x - 4)}^{2} \cdot 2}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 0 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 81 - 11}{4}$

Step 5.2.5.1.2

Add $4 x + 11$ and $0$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 81 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 81 - 11}{4}$

Step 5.2.5.1.3

Add $- 81$ and $81$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 0 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 11}{4}$

Step 5.2.5.1.4

Add $4 x + 11 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ and $0$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 11 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 11}{4}$

Step 5.2.5.1.5

Subtract $11$ from $11$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 0 + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}}{4}$

Step 5.2.5.1.6

Add $4 x$ and $0$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} - 108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}}{4}$

Step 5.2.5.2

Subtract $108 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ from $54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x - 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}}{4}$

Step 5.2.5.3

Combine the opposite terms in $4 x - 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

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Step 5.2.5.3.1

Add $- 54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ and $54 \sqrt[3]{\frac{1}{2} \cdot (x - 4)}$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x + 0}{4}$

Step 5.2.5.3.2

Add $4 x$ and $0$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x}{4}$

Step 5.2.5.4

Cancel the common factor of $4$ .

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Step 5.2.5.4.1

Cancel the common factor.

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = \frac{4 x}{4}$

Step 5.2.5.4.2

Divide $x$ by $1$ .

$f^{- 1} (2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3) = x$

Step 5.3

Evaluate $f (f^{- 1} (x))$ .

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Step 5.3.1

Set up the composite result function.

$f (f^{- 1} (x))$

Step 5.3.2

Evaluate $f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4})$ by substituting in the value of $f^{- 1}$ into $f$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot ((\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) - 4)} + 3$

Step 5.3.3

Simplify each term.

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Step 5.3.3.1

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

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4} - 4 \cdot \frac{4}{4})} + 3$

Step 5.3.3.2

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

Step 5.3.3.3

Combine the numerators over the common denominator.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 11 - 4 \cdot 4}{4})} + 3$

Step 5.3.3.4

Simplify the numerator.

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Step 5.3.3.4.1

Multiply $- 4$ by $4$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 11 - 16}{4})} + 3$

Step 5.3.3.4.2

Subtract $16$ from $- 11$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} + \frac{- 27}{4})} + 3$

Step 5.3.3.5

Combine the numerators over the common denominator.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1}{2} \cdot \frac{x^{3} - 9 x^{2} + 27 x - 27}{4}} + 3$

Step 5.3.3.6

Multiply $\frac{1}{2}$ by $\frac{x^{3} - 9 x^{2} + 27 x - 27}{4}$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{x^{3} - 9 x^{2} + 27 x - 27}{2 \cdot 4}} + 3$

Step 5.3.3.7

Multiply $2$ by $4$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{x^{3} - 9 x^{2} + 27 x - 27}{8}} + 3$

Step 5.3.3.8

Rewrite $\frac{x^{3} - 9 x^{2} + 27 x - 27}{8}$ as ${(\frac{1}{2})}^{3} (x^{3} - 9 x^{2} + 27 x - 27)$ .

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Step 5.3.3.8.1

Factor the perfect power $1^{3}$ out of $x^{3} - 9 x^{2} + 27 x - 27$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1^{3} (x^{3} - 9 x^{2} + 27 x - 27)}{8}} + 3$

Step 5.3.3.8.2

Factor the perfect power $2^{3}$ out of $8$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{\frac{1^{3} (x^{3} - 9 x^{2} + 27 x - 27)}{2^{3} \cdot 1}} + 3$

Step 5.3.3.8.3

Rearrange the fraction $\frac{1^{3} (x^{3} - 9 x^{2} + 27 x - 27)}{2^{3} \cdot 1}$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 \sqrt[3]{{(\frac{1}{2})}^{3} (x^{3} - 9 x^{2} + 27 x - 27)} + 3$

Step 5.3.3.9

Pull terms out from under the radical.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{1}{2} \cdot \sqrt[3]{x^{3} - 9 x^{2} + 27 x - 27}) + 3$

Step 5.3.3.10

Make each term match the terms from the binomial theorem formula.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{1}{2} \cdot \sqrt[3]{x^{3} - 3 \cdot (3 x^{2}) + 3 \cdot (3^{2} x) - 1 \cdot 3^{3}}) + 3$

Step 5.3.3.11

Factor $x^{3} - 3 \cdot 3 x^{2} + 3 \cdot 3^{2} x - 1 \cdot 3^{3}$ using the binomial theorem.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{1}{2} \cdot \sqrt[3]{{(x - 3)}^{3}}) + 3$

Step 5.3.3.12

Pull terms out from under the radical, assuming real numbers.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{1}{2} \cdot (x - 3)) + 3$

Step 5.3.3.13

Apply the distributive property.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{1}{2} x + \frac{1}{2} \cdot - 3) + 3$

Step 5.3.3.14

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

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{x}{2} + \frac{1}{2} \cdot - 3) + 3$

Step 5.3.3.15

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

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{x}{2} + \frac{- 3}{2}) + 3$

Step 5.3.3.16

Move the negative in front of the fraction.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{x}{2} - \frac{3}{2}) + 3$

Step 5.3.3.17

Apply the distributive property.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{x}{2}) + 2 (- \frac{3}{2}) + 3$

Step 5.3.3.18

Cancel the common factor of $2$ .

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Step 5.3.3.18.1

Cancel the common factor.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = 2 (\frac{x}{2}) + 2 (- \frac{3}{2}) + 3$

Step 5.3.3.18.2

Rewrite the expression.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x + 2 (- \frac{3}{2}) + 3$

Step 5.3.3.19

Cancel the common factor of $2$ .

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Step 5.3.3.19.1

Move the leading negative in $- \frac{3}{2}$ into the numerator.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x + 2 (\frac{- 3}{2}) + 3$

Step 5.3.3.19.2

Cancel the common factor.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x + 2 (\frac{- 3}{2}) + 3$

Step 5.3.3.19.3

Rewrite the expression.

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x - 3 + 3$

Step 5.3.4

Combine the opposite terms in $x - 3 + 3$ .

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Step 5.3.4.1

Add $- 3$ and $3$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x + 0$

Step 5.3.4.2

Add $x$ and $0$ .

$f (\frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}) = x$

Step 5.4

Since $f^{- 1} (f (x)) = x$ and $f (f^{- 1} (x)) = x$ , then $f^{- 1} (x) = \frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}$ is the inverse of $f (x) = 2 \sqrt[3]{\frac{1}{2} \cdot (x - 4)} + 3$ .

$f^{- 1} (x) = \frac{x^{3}}{4} - \frac{9 x^{2}}{4} + \frac{27 x}{4} - \frac{11}{4}$