# How do you evaluate square root of 12 + 5 square root of 8 - 7 square root of 20?

Apr 29, 2018

$2 \sqrt{85}$

#### Explanation:

$\sqrt{12 + 5} \cdot \sqrt{8 - 7} \cdot \sqrt{20}$

Simplify:
$\sqrt{17} \cdot \sqrt{1} \cdot \sqrt{4 \cdot 5}$

$\sqrt{17} \cdot 1 \cdot \sqrt{4} \cdot \sqrt{5}$

$\sqrt{17} \cdot 1 \cdot 2 \cdot \sqrt{5}$

2 sqrt(17 * 5

$2 \sqrt{85}$

Hope this helps!