Question

Factorice


a^2-b^2-a-b

2x^2-2x-112

Answer 1

》a^2-b^2-a-b
(a+b)(a-b)-(a+b)
(a+b)(a-b-1)
》2x^2-2x-112
2(x^2-x-56)
2(x-8)(x+7)