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

$\"\"$ (Commutative Property of Multiplication: $\"\"$ )

$\"\"$ (Associative Property of Multiplication: $\"\"$ )

$\"\"$ \ \

$\"\"$ (Cancel common terms)

$\"\"$ (Substitution Property: $\"\"$ )

$\"\"$ (Cancel common factors)

$\"\"$ (Substitution Property: $\"\"$ )

$\"\"$

The value of the expression is $\"\"$ .