# How do you simplify sqrt8-sqrt66?

##### 1 Answer
Jun 4, 2015

The expression $\sqrt{8} - \sqrt{66}$ simplified is $2 \sqrt{2} - \sqrt{66}$ .

Problem: Simplify $\sqrt{8} - \sqrt{66}$ .

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

$\sqrt{66}$ cannot be simplified further.

$\sqrt{8} - \sqrt{66} = 2 \sqrt{2} - \sqrt{66}$