Question

Решите уравнение:
10+(3-x)^3=x^2(9-x)-17

Answer 1

$10+Big(3-xBig)^3=x^2*Big(9-xBig)-17\\Formyla;:\\boxed{;;Big(a-bBig)^3=a^3-3*a^2*b+3*a*b^2-b^3;;;}\\\10+3^3-3*3^2*x+3*3*x^2-x^3=9x^2-x^3-17\\10+27-27x+9x^2-x^3=9x^2-x^3-17\\27x=54\\boxed{;;Big{x=2};;}$