(x-2)(x+2) - x(x-3) + 5 = x-4,
х² - 4 - х² + 3х + 5 - х + 4 = 0,
2х + 5 = 0,
2х = -5,
х = -2,5
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(x-2)(x+2) - x(x-3) + 5 = x-4,
х² - 4 - х² + 3х + 5 - х + 4 = 0,
2х + 5 = 0,
2х = -5,
х = -2,5