Simplify: (x+2)2−(x+2)(x + 2)^2 - (x + 2)(x+2)2−(x+2).
(x+2)(x+1)(x+2)(x+1)(x+2)(x+1)
x2+3x+2x^2 + 3x + 2x2+3x+2
x2+4x+2x^2 + 4x + 2x2+4x+2
Both (a) and (b)