∫ ( x 3 + x 2 3 ) d x = ∫ ( x 1 3 + x 2 3 ) d x {\displaystyle {\begin{aligned}\int \left({\sqrt {x^{3}}}+{\sqrt[{3}]{x^{2}}}\right)dx=\int \left(x^{\frac {1}{3}}+x^{\frac {2}{3}}\right)dx\end{aligned}}}