Algebra Examples

$\frac{1}{\sqrt[3]{4} + \sqrt{2}}$

Step 1

Multiply $\frac{1}{\sqrt[3]{4} + \sqrt{2}}$ by $\frac{\sqrt[3]{4} - \sqrt{2}}{\sqrt[3]{4} - \sqrt{2}}$ .

$\frac{1}{\sqrt[3]{4} + \sqrt{2}} \cdot \frac{\sqrt[3]{4} - \sqrt{2}}{\sqrt[3]{4} - \sqrt{2}}$

Step 2

Multiply $\frac{1}{\sqrt[3]{4} + \sqrt{2}}$ by $\frac{\sqrt[3]{4} - \sqrt{2}}{\sqrt[3]{4} - \sqrt{2}}$ .

$\frac{\sqrt[3]{4} - \sqrt{2}}{(\sqrt[3]{4} + \sqrt{2}) (\sqrt[3]{4} - \sqrt{2})}$

Step 3

Expand the denominator using the FOIL method.

$\frac{\sqrt[3]{4} - \sqrt{2}}{{\sqrt[3]{4}}^{2} - \sqrt[6]{2^{7}} + \sqrt[6]{2^{7}} - {\sqrt{2}}^{2}}$

Step 4

Simplify.

$\frac{\sqrt[3]{4} - \sqrt{2}}{2 \sqrt[3]{2} - 2}$

Step 5

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

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

Step 6

Combine fractions.

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Step 6.1

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

Step 6.2

Expand the denominator using the FOIL method.

$\frac{(\sqrt[3]{4} - \sqrt{2}) ({(2 \sqrt[3]{2})}^{2} - (2 \sqrt[3]{2}) \cdot - 2 + {(- 2)}^{2})}{2 \sqrt[3]{2} {(2 \sqrt[3]{2})}^{2} + 8 {\sqrt[3]{2}}^{2} + 2 \sqrt[3]{2} {(- 2)}^{2} - 2 {(2 \sqrt[3]{2})}^{2} - 8 \sqrt[3]{2} + {(- 2)}^{3}}$

Step 6.3

Simplify.

$\frac{(\sqrt[3]{4} - \sqrt{2}) ({(2 \sqrt[3]{2})}^{2} - (2 \sqrt[3]{2}) \cdot - 2 + {(- 2)}^{2})}{8}$

Step 7

Simplify the numerator.

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Step 7.1

Apply the product rule to $2 \sqrt[3]{2}$ .

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

Step 7.2

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

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

Step 7.3

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

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

Step 7.4

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

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

Step 7.5

Multiply $- 1$ by $2$ .

$\frac{(\sqrt[3]{4} - \sqrt{2}) (4 \sqrt[3]{4} - 2 \sqrt[3]{2} \cdot - 2 + {(- 2)}^{2})}{8}$

Step 7.6

Multiply $- 2$ by $- 2$ .

$\frac{(\sqrt[3]{4} - \sqrt{2}) (4 \sqrt[3]{4} + 4 \sqrt[3]{2} + {(- 2)}^{2})}{8}$

Step 7.7

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

$\frac{(\sqrt[3]{4} - \sqrt{2}) (4 \sqrt[3]{4} + 4 \sqrt[3]{2} + 4)}{8}$

Step 8

Cancel the common factor of $4 \sqrt[3]{4} + 4 \sqrt[3]{2} + 4$ and $8$ .

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Step 8.1

Factor $4$ out of $(\sqrt[3]{4} - \sqrt{2}) (4 \sqrt[3]{4} + 4 \sqrt[3]{2} + 4)$ .

$\frac{4 ((\sqrt[3]{4} - \sqrt{2}) (\sqrt[3]{4} + \sqrt[3]{2} + 1))}{8}$

Step 8.2

Cancel the common factors.

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Step 8.2.1

Factor $4$ out of $8$ .

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

Step 8.2.2

Cancel the common factor.

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

Step 8.2.3

Rewrite the expression.

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

Step 9

The result can be shown in multiple forms.

Exact Form:

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

Decimal Form:

$0.33315402 \dots$