Factor the trinomial: x2−5x+4x^2 - 5x + 4x2−5x+4.
(x−4)(x−1)(x - 4)(x - 1)(x−4)(x−1)
(x−2)(x−2)(x - 2)(x - 2)(x−2)(x−2)
(x+4)(x+1)(x + 4)(x + 1)(x+4)(x+1)
(x−5)(x+1)(x - 5)(x + 1)(x−5)(x+1)