(x - 1)(x + 1) - x(x - 2) = 0
(х - 1)(х + 1) - х(х - 2) = 0 х^2 - 1 - х^2 + 2х = 0 -1 + 2х = 0 2х = 1 | ÷2 х = 1/2 х = 0.5 Ответ: 0.5