решите уравнение x^2 -11x=-15x +6-x

x² - 11x = - 15x + 6 - xx² - 11x + 15x + x - 6 =0x² + 5x - 6 =0D = b² - 4ac = 25 - 4×(-6) = 25 + 24 = 49 = 7²x1 = ( - 5 + 7) / 2 = 1x2 = ( - 5 - 7) / 2 = - 6