Simplify the Radical Expression square root of 2( square root of 8-3)

$\sqrt{2} (\sqrt{8} - 3)$

Simplify each term.

Rewrite $8$ as $2^{2} \cdot 2$ .

Factor $4$ out of $8$ .

$\sqrt{2} (\sqrt{4 (2)} - 3)$

Rewrite $4$ as $2^{2}$ .

$\sqrt{2} (\sqrt{2^{2} \cdot 2} - 3)$

Pull terms out from under the radical.

$\sqrt{2} (| 2 | \sqrt{2} - 3)$

The absolute value is the distance between a number and zero. The distance between $0$ and $2$ is $2$ .

$\sqrt{2} (2 \sqrt{2} - 3)$

Apply the distributive property.

$\sqrt{2} (2 \sqrt{2}) + \sqrt{2} \cdot - 3$

Multiply $\sqrt{2} (2 \sqrt{2})$ .

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

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

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

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

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

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

Add $1$ and $1$ .

$2 {\sqrt{2}}^{2} + \sqrt{2} \cdot - 3$

Move $- 3$ to the left of $\sqrt{2}$ .

$2 {\sqrt{2}}^{2} - 3 \cdot \sqrt{2}$

Simplify each term.

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

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

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

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

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

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

$2 \cdot 2^{\frac{2}{2}} - 3 \cdot \sqrt{2}$

Cancel the common factor of $2$ .

Cancel the common factor.

$2 \cdot 2^{\frac{2}{2}} - 3 \cdot \sqrt{2}$

Rewrite the expression.

$2 \cdot 2^{1} - 3 \cdot \sqrt{2}$

Evaluate the exponent.

$2 \cdot 2 - 3 \cdot \sqrt{2}$

Multiply $2$ by $2$ .

$4 - 3 \sqrt{2}$

The result can be shown in multiple forms.

Exact Form:

$4 - 3 \sqrt{2}$

Decimal Form:

$- 0.24264068 \dots$

Simplify the Radical Expression square root of 2( square root of 8-3)

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