$\"\"$

Rewrite the expression using product property of square roots;

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

$\"\"$ (Product of two same signs is positive)

$\"\"$ (Rewrite the expression: $\"\"$ ) $\"\"$

Apply assosiative property of multiplication: $\"\"$ .

$\"\"$

$\"\"$ (Product of $\"\"$ )

Rewrite the expression using product property of square roots;

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

$\"\"$

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

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .