Practice problem
Factor: x2−4x+4x^2 - 4x + 4x2−4x+4
(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−2)(x-2)(x−2)
Type a concept, like “slope” or “photosynthesis”.
