$\"\"$

\

\

The expression is $\"\"$

\

Commutative property $\"\"$

\

$\"\"$ (Cancel common terms)

\

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

\

$\"\"$

\

$\"\"$

\

And the other term is $\"\"$ $\"\"$

\

\

\

$\"\"$

\

$\"\"$

\

\

The expression is equal

\