The polynomial P(x)=x2−4x+4P(x) = x^2 - 4x + 4P(x)=x2−4x+4 can be written as:
(x−2)2(x - 2)^2(x−2)2
(x+2)2(x + 2)^2(x+2)2
(x−2)(x+2)(x - 2)(x + 2)(x−2)(x+2)
(x−4)2(x - 4)^2(x−4)2