\[ x^2 y^{(4)}(x)+4 x y^{(3)}(x)+2 y''(x)=0 \] ✓ Mathematica : cpu = 0.0082554 (sec), leaf count = 29
\[\{\{y(x)\to c_2 (-x)+c_4 x+c_2 x \log (x)-c_1 \log (x)+c_3\}\}\] ✓ Maple : cpu = 0.011 (sec), leaf count = 17
\[y \relax (x ) = \left (x c_{4}+c_{2}\right ) \ln \relax (x )+x c_{3}+c_{1}\]