\[ y''(x)+x y'(x)-y(x)=0 \] ✓ Mathematica : cpu = 0.0838 (sec), leaf count = 45
\[\left \{\left \{y(x)\to -\sqrt {\frac {\pi }{2}} c_2 x \text {erf}\left (\frac {x}{\sqrt {2}}\right )-c_2 e^{-\frac {x^2}{2}}+c_1 x\right \}\right \}\]
✓ Maple : cpu = 0.045 (sec), leaf count = 33
\[ \left \{ y \left ( x \right ) =\sqrt {\pi }\sqrt {2}{{\rm e}^{-{\frac {{x}^{2}}{2}}}}{\it \_C2}+x \left ( \pi \,{\it \_C2}\,{\it Erf} \left ( {\frac {\sqrt {2}x}{2}} \right ) +{\it \_C1} \right ) \right \} \]