Решите уравнение
(Х-3)(5+2х)=2(х-1)^2

(Х-3)(5+2х)=2(х-1)^2 5x - 15 + 2x^2 - 6x = 2(x^2 - 2x + 1)-x -15 + 2x^2 = 2x^2 - 4x + 2-x + 2x^2 - 2x^2 + 4x = 15 + 23x = 17x = 17/3x = 5 2/3

(х – 3)(5 + 2х) = 2(х – 1)^2 5 х + 2х2 – 15 – 5х = 2 х2 -4х + 2 -х + 4х = 2 + 15 3х = 17Х = 17/3.