\[ y''(x) \left (a x^2+b \lambda +c\right )+y(x) \left (a x^2+\beta \lambda +\gamma \right )+y^{(4)}(x)=0 \] ✗ Mathematica : cpu = 80.1946 (sec), leaf count = 0 , DifferentialRoot result
\[\left \{\left \{y(x)\to (x)\right \}\right \}\]
✗ Maple : cpu = 0. (sec), leaf count = 0 , result contains DESol
\[\{y \left (x \right ) = \mathit {DESol}\left (\left \{\left (a \,x^{2}+\beta \lambda +\gamma \right ) \textit {\_Y} \left (x \right )+\left (a \,x^{2}+b \lambda +c \right ) \left (\frac {d^{2}}{d x^{2}}\textit {\_Y} \left (x \right )\right )+\frac {d^{4}}{d x^{4}}\textit {\_Y} \left (x \right )\right \}, \left \{\textit {\_Y} \left (x \right )\right \}\right )\}\]