show that the function has a unique critical point. what kind is it?
I tried using the second derivative test. So from first derivatives I got the critical points (0,0) (1,0) and (1,2)
I then tried using the determinant where but it was always inconclusive. For example D=0 for the point (0,0) and for (1,0) and I don't know how to interpret that.
I haven't learned Larange multipliers yet.