\[ y(x) (\text {a0} x+\text {b0})+(\text {a1} x+\text {b1}) y'(x)+(\text {a2} x+\text {b2}) y''(x)=0 \] ✓ Mathematica : cpu = 0.367614 (sec), leaf count = 301
\[\left \{\left \{y(x)\to e^{-\frac {x \left (\sqrt {\text {a1}^2-4 \text {a0} \text {a2}}+\text {a1}\right )}{2 \text {a2}}} (\text {a2} x+\text {b2})^{\frac {\text {a1} \text {b2}+\text {a2}^2-\text {a2} \text {b1}}{\text {a2}^2}} \left (c_1 U\left (\frac {2 \left (\sqrt {\text {a1}^2-4 \text {a0} \text {a2}}-\text {b0}\right ) \text {a2}^2+\left (\text {a1} \text {b1}-\sqrt {\text {a1}^2-4 \text {a0} \text {a2}} \text {b1}+2 \text {a0} \text {b2}\right ) \text {a2}+\text {a1} \left (\sqrt {\text {a1}^2-4 \text {a0} \text {a2}}-\text {a1}\right ) \text {b2}}{2 \text {a2}^2 \sqrt {\text {a1}^2-4 \text {a0} \text {a2}}},-\frac {\text {b1}}{\text {a2}}+\frac {\text {a1} \text {b2}}{\text {a2}^2}+2,\frac {\sqrt {\text {a1}^2-4 \text {a0} \text {a2}} (\text {b2}+\text {a2} x)}{\text {a2}^2}\right )+c_2 L_{\frac {-2 \text {a2}^2 \left (\sqrt {\text {a1}^2-4 \text {a0} \text {a2}}-\text {b0}\right )+\text {a2} \left (\text {b1} \sqrt {\text {a1}^2-4 \text {a0} \text {a2}}-2 \text {a0} \text {b2}-\text {a1} \text {b1}\right )+\text {a1} \text {b2} \left (\text {a1}-\sqrt {\text {a1}^2-4 \text {a0} \text {a2}}\right )}{2 \text {a2}^2 \sqrt {\text {a1}^2-4 \text {a0} \text {a2}}}}^{\frac {\text {a1} \text {b2}+\text {a2}^2-\text {a2} \text {b1}}{\text {a2}^2}}\left (\frac {\sqrt {\text {a1}^2-4 \text {a0} \text {a2}} (\text {a2} x+\text {b2})}{\text {a2}^2}\right )\right )\right \}\right \}\]
✓ Maple : cpu = 0.2 (sec), leaf count = 248
\[ \left \{ y \left ( x \right ) = \left ( {\it a2}\,x+{\it b2} \right ) ^{{\frac {{\it a1}\,{\it b2}+{{\it a2}}^{2}-{\it a2}\,{\it b1}}{{{\it a2}}^{2}}}}{{\rm e}^{-{\frac {x}{2\,{\it a2}} \left ( \sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}+{\it a1} \right ) }}} \left ( {{\sl U}\left ({\frac {1}{2\,{{\it a2}}^{2}} \left ( \left ( {\it a1}\,{\it b2}+2\,{{\it a2}}^{2}-{\it a2}\,{\it b1} \right ) \sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}-2\,{{\it a2}}^{2}{\it b0}+ \left ( 2\,{\it a0}\,{\it b2}+{\it a1}\,{\it b1} \right ) {\it a2}-{{\it a1}}^{2}{\it b2} \right ) {\frac {1}{\sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}}}},\,{\frac {{\it a1}\,{\it b2}+2\,{{\it a2}}^{2}-{\it a2}\,{\it b1}}{{{\it a2}}^{2}}},\,{\frac {{\it a2}\,x+{\it b2}}{{{\it a2}}^{2}}\sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}}\right )}{\it \_C2}+{{\sl M}\left ({\frac {1}{2\,{{\it a2}}^{2}} \left ( \left ( {\it a1}\,{\it b2}+2\,{{\it a2}}^{2}-{\it a2}\,{\it b1} \right ) \sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}-2\,{{\it a2}}^{2}{\it b0}+ \left ( 2\,{\it a0}\,{\it b2}+{\it a1}\,{\it b1} \right ) {\it a2}-{{\it a1}}^{2}{\it b2} \right ) {\frac {1}{\sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}}}},\,{\frac {{\it a1}\,{\it b2}+2\,{{\it a2}}^{2}-{\it a2}\,{\it b1}}{{{\it a2}}^{2}}},\,{\frac {{\it a2}\,x+{\it b2}}{{{\it a2}}^{2}}\sqrt {-4\,{\it a0}\,{\it a2}+{{\it a1}}^{2}}}\right )}{\it \_C1} \right ) \right \} \]