Which equation represents the polynomial function with zeros - 3, 1, and 2, and a y-intercept of - 12?

To generate the equation we set up the factors

(x+3) * (x-1) * (x-2) which equals

x^2 + 2x - 3 * (x-2)

x^3 + 2x^2 - 3x - 2x^2 - 4x + 6 equals

x^3 - 3x - 4x + 6 which equals

x^3 - 7x + 6