(x-4)(x-6)-(x-2)(x+2)=-2
X²-10x+24-x²+4=-2 -10x=-30 x=3
(x-4)(x-6)-(x-2)(x+2)=-2 x^2-6x-4x+24-(x^2-2^2)=-2 x^2-10x+24-x^2+4=-2 -10x+28=-2 -10x=-30 x=3