Factor x2−36x^2 - 36x2−36.
(x−6)(x+6)(x - 6)(x + 6)(x−6)(x+6)
(x−6)2(x - 6)^2(x−6)2
(x−4)(x−9)(x - 4)(x - 9)(x−4)(x−9)
Cannot be factored