$\"\"$

The expression is $\"\"$ .

Using the conjugates to Rationalize a denominator.

$\"\"$ ; The conjugate of $\"\"$ is $\"\"$ .

$\"\"$

Apply product of sum and defference property: $\"\"$ .

$\"\"$

Evaluate powers: $\"\"$ .

$\"\"$

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .