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

$\"\"$ (Commutative property of multiplication: $\"\"$ )

$\"\"$ (Associative property of multiplication: $\"\"$ )

$\"\"$

$\"\"$ (Cancel common terms)

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

$\"\"$ (Cancel common terms)

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

$\"\"$

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