Please answer

13:41 5 p15) Find the critical points and the local maximum and minimum of the function: f(x) = x3 + 4x2 6. Show all ofyour work. 2) (15 pts) The graph of f (I) is show below: :1) Which values of x are critical points? b) At which values of x does f(x) attain a local maximum? 0) At which values of 3: does f (x) attain a local minimum