step 1:

 The function is .

Apply first derivative with respect to .

To find the relative extrema, by equating .

Apply zero product property

and

and

Hence, the critical values of  are and  .

substitute in .

Hence, 

The point is .

Substitute in .

Hence,  .

The point is .

The relative extrema points are and .

Using second derivative test, determine the relative extrema.

Apply second derivative with respect to .

.

Point
Sign of	\ \	\ \
Conclusion	Relative maximum	Relative minimum

The relative maximum at .

The relative minimum at .

Solution:

The relative maximum at .

The relative minimum at .