$\"\"$

The expression is $\"\"$ .

$\"\"$ (Multiply by the reciprocal) \ \

$\"\"$

$\"\"$ (Take out common factors denominator) \ \ $\"\"$

(Apply formula: $\"\"$ )

$\"\"$

$\"\"$ (Cancel common factors)

$\"\"$ (Simplify)

$\"\"$ (Simplify) $\"\"$

The simplified expression value is $\"\"$ .