Having some trouble with the following two questions, I have an answer but it doesn't make sense...

A function f is defined by the formula f (x) = (x-1)^2 (x+2)

(a) Find the coordinates of the points where the curve with the equation y = f(x) crosses the x - and y-axes.

(b) Find the stationary points of this curve y = f(x).

For the derivative of (a) I got 2x^2 - 3 but I didn't know how to get the points from that... Help is much appreciated!