Question

Решите уравнение
(x+1)(x+2)-(x-3)(x+4)=6
(3x-1)(2x+7)-(x+1)(6x-5)=7

Answer 1

х²+х+2х+2-х²+3х-4х+12-6=0
2х+8=0
2х=-8
х=-4

6х²-2х+21х-7-6х²-6х+5х+5-7=0
18х-9=0
18х=9
х=0.5