Form a polynomial of degree 3 whose real zeros are -2, 0, and 4.
P(x) =
(x - 0) ( x - 4) (x - - 2)
x ( x - 4) (x + 2)
x ( x^2 - 4x + 2x - 8)
x(x^2 - 2x - 8)
x^3 - 2x^2 - 8x
+295 
