Решите уравнение: (3 – 2х)2 – (5+2х)(2х +1) = -20.

(3-2x)^2 - (5+2x)(2x+1) = -20 =>(9-12x+4x^2)-(10x+5+4x^2+2x)=-20 =>9-12x+4x^2-10x-5-4x^2-2x+20=0 =>24-24x=0 =>24x=24 =>x=1