$\"\"$

\

The expression is $\"\"$ .

\

$\"\"$

\

$\"\"$ (product of two same sings is positive)

\

The common denominator is $\"\"$ , So $\"\"$ .

\

Combine like terms using distributive property: $\"\"$ .

\

$\"\"$

\

$\"\"$

\

The simplified expression is $\"\"$ .