Simplify 1/(3 square root of 2)-2 square root of 2+7 square root of 2-1/(6 square root of 2)

$\frac{1}{3 \sqrt{2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Step 1

Simplify each term.

Multiply $\frac{1}{3 \sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{1}{3 \sqrt{2}} \cdot \frac{\sqrt{2}}{\sqrt{2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Combine and simplify the denominator.

Multiply $\frac{1}{3 \sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{\sqrt{2}}{3 \sqrt{2} \sqrt{2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Move $\sqrt{2}$ .

$\frac{\sqrt{2}}{3 (\sqrt{2} \sqrt{2})} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{2}}{3 ({\sqrt{2}}^{1} \sqrt{2})} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{2}}{3 ({\sqrt{2}}^{1} {\sqrt{2}}^{1})} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

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

$\frac{\sqrt{2}}{3 {\sqrt{2}}^{1 + 1}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Add $1$ and $1$ .

$\frac{\sqrt{2}}{3 {\sqrt{2}}^{2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Rewrite ${\sqrt{2}}^{2}$ as $2$ .

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

$\frac{\sqrt{2}}{3 {(2^{\frac{1}{2}})}^{2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

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

$\frac{\sqrt{2}}{3 \cdot 2^{\frac{1}{2} \cdot 2}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

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

$\frac{\sqrt{2}}{3 \cdot 2^{\frac{2}{2}}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{\sqrt{2}}{3 \cdot 2^{\frac{2}{2}}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Rewrite the expression.

$\frac{\sqrt{2}}{3 \cdot 2^{1}} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Evaluate the exponent.

$\frac{\sqrt{2}}{3 \cdot 2} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Multiply $3$ by $2$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{1}{6 \sqrt{2}}$

Multiply $\frac{1}{6 \sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - (\frac{1}{6 \sqrt{2}} \cdot \frac{\sqrt{2}}{\sqrt{2}})$

Combine and simplify the denominator.

Multiply $\frac{1}{6 \sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \sqrt{2} \sqrt{2}}$

Move $\sqrt{2}$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 (\sqrt{2} \sqrt{2})}$

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 ({\sqrt{2}}^{1} \sqrt{2})}$

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 ({\sqrt{2}}^{1} {\sqrt{2}}^{1})}$

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

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 {\sqrt{2}}^{1 + 1}}$

Add $1$ and $1$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 {\sqrt{2}}^{2}}$

Rewrite ${\sqrt{2}}^{2}$ as $2$ .

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

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 {(2^{\frac{1}{2}})}^{2}}$

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

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \cdot 2^{\frac{1}{2} \cdot 2}}$

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

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \cdot 2^{\frac{2}{2}}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \cdot 2^{\frac{2}{2}}}$

Rewrite the expression.

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \cdot 2^{1}}$

Evaluate the exponent.

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{6 \cdot 2}$

Multiply $6$ by $2$ .

$\frac{\sqrt{2}}{6} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Step 2

Find the common denominator.

Multiply $\frac{\sqrt{2}}{6}$ by $\frac{2}{2}$ .

$\frac{\sqrt{2}}{6} \cdot \frac{2}{2} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Multiply $\frac{\sqrt{2}}{6}$ by $\frac{2}{2}$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} - 2 \sqrt{2} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Write $- 2 \sqrt{2}$ as a fraction with denominator $1$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2}}{1} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Multiply $\frac{- 2 \sqrt{2}}{1}$ by $\frac{12}{12}$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2}}{1} \cdot \frac{12}{12} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Multiply $\frac{- 2 \sqrt{2}}{1}$ by $\frac{12}{12}$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2} \cdot 12}{12} + 7 \sqrt{2} - \frac{\sqrt{2}}{12}$

Write $7 \sqrt{2}$ as a fraction with denominator $1$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2} \cdot 12}{12} + \frac{7 \sqrt{2}}{1} - \frac{\sqrt{2}}{12}$

Multiply $\frac{7 \sqrt{2}}{1}$ by $\frac{12}{12}$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2} \cdot 12}{12} + \frac{7 \sqrt{2}}{1} \cdot \frac{12}{12} - \frac{\sqrt{2}}{12}$

Multiply $\frac{7 \sqrt{2}}{1}$ by $\frac{12}{12}$ .

$\frac{\sqrt{2} \cdot 2}{6 \cdot 2} + \frac{- 2 \sqrt{2} \cdot 12}{12} + \frac{7 \sqrt{2} \cdot 12}{12} - \frac{\sqrt{2}}{12}$

Reorder the factors of $6 \cdot 2$ .

$\frac{\sqrt{2} \cdot 2}{2 \cdot 6} + \frac{- 2 \sqrt{2} \cdot 12}{12} + \frac{7 \sqrt{2} \cdot 12}{12} - \frac{\sqrt{2}}{12}$

Multiply $2$ by $6$ .

$\frac{\sqrt{2} \cdot 2}{12} + \frac{- 2 \sqrt{2} \cdot 12}{12} + \frac{7 \sqrt{2} \cdot 12}{12} - \frac{\sqrt{2}}{12}$

Step 3

Combine the numerators over the common denominator.

$\frac{\sqrt{2} \cdot 2 - 2 \sqrt{2} \cdot 12 + 7 \sqrt{2} \cdot 12 - \sqrt{2}}{12}$

Step 4

Simplify each term.

Move $2$ to the left of $\sqrt{2}$ .

$\frac{2 \cdot \sqrt{2} - 2 \sqrt{2} \cdot 12 + 7 \sqrt{2} \cdot 12 - \sqrt{2}}{12}$

Multiply $12$ by $- 2$ .

$\frac{2 \sqrt{2} - 24 \sqrt{2} + 7 \sqrt{2} \cdot 12 - \sqrt{2}}{12}$

Multiply $12$ by $7$ .

$\frac{2 \sqrt{2} - 24 \sqrt{2} + 84 \sqrt{2} - \sqrt{2}}{12}$

Step 5

Simplify by adding terms.

Subtract $24 \sqrt{2}$ from $2 \sqrt{2}$ .

$\frac{- 22 \sqrt{2} + 84 \sqrt{2} - \sqrt{2}}{12}$

Add $- 22 \sqrt{2}$ and $84 \sqrt{2}$ .

$\frac{62 \sqrt{2} - \sqrt{2}}{12}$

Subtract $\sqrt{2}$ from $62 \sqrt{2}$ .

$\frac{61 \sqrt{2}}{12}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$\frac{61 \sqrt{2}}{12}$

Decimal Form:

$7.18891894 \dots$

Simplify 1/(3 square root of 2)-2 square root of 2+7 square root of 2-1/(6 square root of 2)

Related Questions