Evaluate 4 square root of 8

$4 \sqrt{8}$

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

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Factor $4$ out of $8$ .

$4 \sqrt{4 (2)}$

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

$4 \sqrt{2^{2} \cdot 2}$

Pull terms out from under the radical.

$4 (2 \sqrt{2})$

Multiply $2$ by $4$ .

$8 \sqrt{2}$

The result can be shown in multiple forms.

Exact Form:

$8 \sqrt{2}$

Decimal Form:

$11.31370849 \dots$

Evaluate 4 square root of 8

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