(14х-1)(2+х)=(2х-8)(7х+1)
28x + 14x² - 2 - x = 14x² + 2x - 56x - 8 28x + 14x² - 2 - x - 14x² - 2x + 56x + 78 = 0 81x = -6 x = -6/81 x = -2/27