Factor: 3x2−123x^2-123x2−12.
3(x−2)(x+2)3(x-2)(x+2)3(x−2)(x+2)
3(x−4)(x+1)3(x-4)(x+1)3(x−4)(x+1)
(3x−6)(x+2)(3x-6)(x+2)(3x−6)(x+2)
3(x2−4)3(x^2-4)3(x2−4)