We will have the following:
[tex]x(\frac{1}{\sqrt[x]{x^3}})-\frac{x^{x-2}}{x}=0\Rightarrow x(\frac{1}{\sqrt[x]{x^3}})-\frac{x^x}{x\cdot x^2}[/tex][tex]\Rightarrow x(\frac{1}{\sqrt[x]{x^3}})-\frac{x^x}{x^3}\Rightarrow\frac{x}{(x^3)^{\frac{1}{x}}}-\frac{x^x}{x^3}[/tex][tex]\Rightarrow[/tex]
