Question

Нужна помощь (x-6)(x+2)-x^2=8

Answer 1

x^2-4x-12 -x^2=8
4x=-20
x=-5

Answer 2

$(x-6)(x+2)-x^2=8\\ x^2+2x-6x-12-x^2-8=0\\ -4x-20=0\\4x+20=0\\4x=-20\\x=-20/4\\x=-5$