Question

Решите пооож уравнение (3 - 2х)^2-(5+2х )(2х+1) = -20 пооооож решите

Answer 1

(3 - 2х)^2-(5+2х )(2х+1) = -20
9-12х+4х²-10х-4х²-5-2х=-20
4-24х=-20
24х=-20-4
24х=-24
х=-1