$\"\"$

Rewrite the expression using perfect square roots.

$\"\"$ (The factars of 80 = 16 $\"\"$ 5)

Rewrite the expression using product property of square roots;

For nonnegative real numbers a and b, $\"\"$ .

$\"\"$

$\"\"$ (Positive square root of 16 = $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .