Question

x(x^2-2)=x^3+8 помогите до 4 уровнения срочно

Answer 1

x^3 - 2x = x^3 + 8
x^3 - 2x - x^3 - 8 = 0 
- 2x - 8 = 0 
- 2x = 8 
2x = - 8
x = - 8/2
x = - 4