$\"\"$

\

The expression is $\"\"$ .

\

Simplify the expression.

\

$\"\"$ (Multiply)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Division: $\"\"$ )

\

$\"\"$ .

\

Simplified expression is $\"\"$ .

\

Find excluded value for $\"\"$ .

\

$\"\"$ (The denominator can be zero)

\

$\"\"$ (Simplify)

\

$\"\"$ (Zero product property)

\

Excluded value of $\"\"$ is $\"\"$ .

\

$\"\"$

\

The simplified expression is $\"\"$ .

\

Excluded value of $\"\"$ is $\"\"$ .