$\"\"$

The function is $\"\"$ .

Find the critical numbers of $\"\"$ by setting $\"\"$ .

$\"\"$

Apply differentiation on both sides with respect to $\"\"$ .

$\"\"$

Use the power rule of derivatives : $\"\"$ .

$\"\"$

Equate the derivative to zero to find the critical numbers.

$\"\"$

$\"\"$ and $\"\"$ .

So the critical numbers are $\"\"$ and $\"\"$ .

$\"\"$

Critical numbers of the function $\"\"$ are $\"\"$ and $\"\"$ .