# Can someone explain this question?

##### 2 Answers

You need to derive your function with respect to

#### Explanation:

Ok, I can be wrong but your function can be derived as:

rearranging:

Let us set this equal to zero:

when:

I think....

This is what I got.

#### Explanation:

Given expression is

Using product rule

To meet the given condition

either

or

To find roots of

either

or

From both (3) and (4)

we get

This solution is purely theoretical as such this equation has no solution in real or complex numbers.

As such only possible solution is as given in equation (2)