Решите уравнение :
( 5 - x )^2 - ( 3x - 2 ) ( 2x + 1 ) = x ( 2 - 5x )

( 5 - x )^2 - ( 3x - 2 ) ( 2x + 1 ) = x ( 2 - 5x )(5–х)(5+х)–(3х-2)(2х+1)=2х–5х5х+3х+2х–2х-5х=–2+13х=3х=1