Rozwiąż nierównosci a)27 x³ > 8 b) x³ - 8>0

[latex]27x^3 extgreater 8, ||:27\ x^3 extgreater frac{8}{27}\ x extgreater frac{2}{3}\ oxed{x in (frac{2}{3},+infty)}[/latex] [latex]x^3-8 extgreater 0\ x^3 extgreater 8\ x extgreater 2\ oxed{x in (2,+infty)}[/latex]