$\"\"$

\

The expression is $\"\"$ .

\

Simplify the expression.

\

$\"\"$ (Original expression)

\

$\"\"$ (Sum of quotients: $\"\"$ )

\

$\"\"$ (Quotient of powers: $\"\"$ )

\

$\"\"$ (Subtract powers)

\

$\"\"$ (Zero power property: $\"\"$ )

\

$\"\"$ (Simplify)

\

$\"\"$ .

\

$\"\"$

\

The simplified expression is $\"\"$ .