$\"\"$

Rewrite the expression using perfect square roots.

$\"\"$

Rewrite the expression using quotient property of square roots;

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

$\"\"$ $\"\"$

Rewrite the expression using perfect square roots.

$\"\"$ (The factars of $\"\"$ )

Rewrite the expression using product property of square roots;

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

$\"\"$

$\"\"$ (Find the square root: $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .