x1 = 2, x2 = 3
Объяснение:
2х²-6х+18-6х-3х²+9х+х³-3х²+12х-36-4х²+12х=0
-8x^2 + 21x - 18 + x^3 = 0
x^3 - 8x^2 + 21x - 18 = 0
x^3 - 2x^2 - 6x^2 + 12x + 9x - 18 = 0
x^2 * (x-2) - 6x * (x-2) + 9 (x-2) = 0
(x-2) * (x^2 - 6x + 9) = 0
(x-2) * (x - 3) = 0
x - 2 = 0
(x-3)^2 = 0
x = 2
x = 3
x1 = 2
x2 = 3
x1 = 2, x2 = 3
Объяснение:
2х²-6х+18-6х-3х²+9х+х³-3х²+12х-36-4х²+12х=0
-8x^2 + 21x - 18 + x^3 = 0
x^3 - 8x^2 + 21x - 18 = 0
x^3 - 2x^2 - 6x^2 + 12x + 9x - 18 = 0
x^2 * (x-2) - 6x * (x-2) + 9 (x-2) = 0
(x-2) * (x^2 - 6x + 9) = 0
(x-2) * (x - 3) = 0
x - 2 = 0
(x-3)^2 = 0
x = 2
x = 3
x1 = 2
x2 = 3