Factor x2−4x−12x^2 - 4x - 12x2−4x−12.
(x+6)(x−2)(x + 6)(x - 2)(x+6)(x−2)
(x−6)(x+2)(x - 6)(x + 2)(x−6)(x+2)
(x−2)(x−6)(x - 2)(x - 6)(x−2)(x−6)
(x+2)(x−4)(x + 2)(x - 4)(x+2)(x−4)