$\begin{array}{1 1} \large \frac{2}{3}x^\frac{3}{2}-\large\frac{2}{5}x^\frac{5}{2}+c. \\ \large \frac{2}{3}x^\frac{-3}{2}-\large\frac{-2}{5}x^\frac{5}{2}+c. \\ \large \frac{2}{3}x^\frac{-3}{2}+\large\frac{2}{5}x^\frac{5}{2}+c. \\ \large \frac{2}{3}x^\frac{3}{2}+\large\frac{2}{5}x^\frac{5}{2}+c. \end{array} $