Question

simplify.
$4\sqrt{8}$

Explanation:

Step1: Factor 8 into 4×2

$\sqrt{8} = \sqrt{4\times2}$

Step2: Use square root property $\sqrt{ab}=\sqrt{a}\times\sqrt{b}$

$\sqrt{4\times2}=\sqrt{4}\times\sqrt{2}=2\sqrt{2}$

Step3: Multiply by 4

$4\times2\sqrt{2}=8\sqrt{2}$

Answer:

$8\sqrt{2}$