\[ y'(x) (a y(x)+b x)+a b x y(x)+y'(x)^2=0 \] ✓ Mathematica : cpu = 0.015656 (sec), leaf count = 29
\[\left \{\left \{y(x)\to c_1 e^{-a x}\right \},\left \{y(x)\to -\frac {b x^2}{2}+c_1\right \}\right \}\] ✓ Maple : cpu = 0.01 (sec), leaf count = 22
\[\left \{y \left (x \right ) = c_{1} {\mathrm e}^{-a x}, y \left (x \right ) = -\frac {b \,x^{2}}{2}+c_{1}\right \}\]