x(x - 2) - x + 2 = 0, X(x - 2) + x - 2 = 0, x[x - 2] + X - 2 = 0, x(x – 2) + x – 2 = 0, x (x - 2) + x - 2 = 0, X(x - 2) - x + 2 = 0, X(x-2)-(x-2)=0, X(x-2)+x-2=0, X.(x-2)+(x-2)=0, x . x - 2 - x + 2 = 0, x(x+2)(x-2)=0, x(x+2)+x+2=0