Question

Решите уравнение (x+4)^2-(x+1)(x-2)=2x-3

Answer 1

(x+4)²-(x+1)(x-2)=2x-3
х²+8х+16-х²+2х-х+2=2х-3
9х+18=2х-3
9х-2х=-18-3
7х=-21
х=-21:7
х=-3