Question

Решите примеры:

(x - 7) (x + 8)

(x + 4) (x + 3)

(x + 4) (x - 6)

(x + 4) (x - 6)

Answer 1

1) x^2+8x-7x-56=x^2+x-56
2)x^2+3x+4x+12=x^2+7x+12
3)x^2-6x+4x-24=x^2-2x-24
4)x^2-6x+4x-24=x^2-2x-24