18х - 6х2 + 18 - 6х = 0
-6х2 + 12х + 18 = 0
6x2 -12x - 18 = 0
D = 144 + 432 = 576
x1 = 3, x2 = -1
ответ: -1; 3
18х - 6х2 + 18 - 6х = 0
-6х2 + 12х + 18 = 0
6x2 -12x - 18 = 0
D = 144 + 432 = 576
x1 = 3, x2 = -1
ответ: -1; 3