(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