$\"\"$

The expression is $\"\"$ .

Apply power of a quotient formula: $\"\"$ .

$\"\"$

Apply power of a power formula: $\"\"$ .

$\"\"$

$\"\"$ $\"\"$

For any real number a ≠ 0 , and any integers m and n, $\"\"$ .

$\"\"$

Apply negative exponents formula: $\"\"$ .

$\"\"$

The simplified expression is $\"\"$ .