Question

(2х+4)(3х-1)-(6х-12)(х+3)=100

Answer 1

6x^2 - 2x + 12x - 4 - (6x^2 + 18x - 12x - 36) = 100
10x - 4 - 18x + 12x + 36 = 100
4x +32 = 100
4x = 132
x = 132/4
x = 33

Answer 2

Большое спасибо)))