Question

( х-2)³-3х²-4=(х-3)³
Помогите даю 17 баллов

Answer 1

(x - 2)^3 - 3x^2 - 4 = (x - 3)^3
x^3 - 6x^2 + 12x - 8 - 3x^2 - 4 = x^3 - 9x^2 + 27x - 27
12x - 12 - 27x + 27 = 0
-15x + 39 = 0
-15x = 39
x = - 2.6