$\"\"$

The expression is $\"\"$ .

Quotient property of square roots: $\"\"$ .

$\"\"$

$\"\"$ (Substitute $\"\"$ is $\"\"$ )

$\"\"$ (Apply aditive inverse property: $\"\"$ )

$\"\"$ (Substitute: $\"\"$ )

$\"\"$ (Multiply numarator and denominator by $\"\"$ )

$\"\"$ (Product property of square roots: $\"\"$ )

$\"\"$ (Simplify)

$\"\"$ .

Therefore, the simplified expression is $\"\"$ . $\"\"$

$\"\"$ .