\[ -3 x^3+x^2 y''(x)-x y'(x)+y(x)=0 \] ✓ Mathematica : cpu = 0.0147013 (sec), leaf count = 23
\[\left \{\left \{y(x)\to c_1 x+c_2 x \log (x)+\frac {3 x^3}{4}\right \}\right \}\]
✓ Maple : cpu = 0.022 (sec), leaf count = 21
\[ \left \{ y \left ( x \right ) ={\frac {x \left ( 4\,\ln \left ( x \right ) {\it \_C1}+3\,{x}^{2}+4\,{\it \_C2} \right ) }{4}} \right \} \]