6x-x²-6/x-1-1=2x-3/x-1
-x^2 - 4x - 8 =0 D = b^2 - 4ac = 16 - 32 = 16 = 4^2 x1 = (4 - 4)/2 = 0 x2 = (4+4)/2 = 4 Ответ: 4