\[ y'(x)=\frac {1}{36} \sqrt {x} \left (18 x^{3/2}+x^6-12 x^3 y(x)+36 y(x)^2\right ) \] ✓ Mathematica : cpu = 0.119879 (sec), leaf count = 27
\[\left \{\left \{y(x)\to \frac {x^3}{6}+\frac {1}{-\frac {2 x^{3/2}}{3}+c_1}\right \}\right \}\] ✓ Maple : cpu = 0.1 (sec), leaf count = 19
\[y \relax (x ) = \frac {x^{3}}{6}+\frac {1}{c_{1}-\frac {2 x^{\frac {3}{2}}}{3}}\]