Najpierw doprowadzam wyrażenie do najprostrzej postaci.
\frac{x^3-2x}{x^2}=\frac{x(x^2-2)}{x^2}=\frac{x^2-2}{x}=
\frac{(\sqrt3)^2-2}{\sqrt3}=\frac{3-2}{\sqrt3}=\frac{1}{\sqrt3}=\frac{\sqrt3}{\sqrt3*\sqrt3}=\frac{\sqrt3}{3}
albo
\frac{x^3-2x}{x^2}=\frac{(\sqrt3)^3-2\sqrt3}{(\sqrt3)^2}=\frac{\sqrt{27}-2\sqrt3}{3}=\frac{3\sqrt3-2\sqrt3}{3}=\frac{\sqrt3}{3}