$\"\"$

The expression is $\"\"$ .

Simplify the expression.

$\"\"$ (Original expression)

For any real number $\"\"$ and any positive integer $\"\"$ , $\"\"$ .

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

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Multiply exponents)

$\"\"$ (Simplify)

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

$\"\"$ .

$\"\"$

The radical form of the expression is $\"\"$ .