$\"\"$

\

The expression is $\"\"$ .

\

Simplify the expression.

\

$\"\"$ (Original expression)

\

$\"\"$ (Definition of $\"\"$ )

\

$\"\"$ (Factors)

\

$\"\"$ (Simplify)

\

$\"\"$ (Add: $\"\"$ )

\

$\"\"$ (Subtract)

\

$\"\"$

\

$\"\"$ .