Ответ:
х³ - 6х² + 12х - 12 = -170,437
х³ - 18х³ - 12 = 9,261 - 18•9,261 - 12 = 9,261 - 166,698 -13 = -157,437 - 13 = -170,437
1)x^3 - 8x^2 + 16x = x(x^2 - 8x + 16) = x(x-4)(x-4)