\[ y(x) y'(x)^2+2 x y'(x)-y(x)=0 \] ✓ Mathematica : cpu = 0.0739048 (sec), leaf count = 52
\[\left \{\left \{y(x)\to -e^{\frac {c_1}{2}} \sqrt {e^{c_1}-2 x}\right \},\left \{y(x)\to e^{\frac {c_1}{2}} \sqrt {e^{c_1}-2 x}\right \}\right \}\]
✓ Maple : cpu = 2.278 (sec), leaf count = 70
\[ \left \{ y \left ( x \right ) =\sqrt {{{\it \_C1}}^{2}-2\,{\it \_C1}\,x},y \left ( x \right ) =\sqrt {{{\it \_C1}}^{2}+2\,{\it \_C1}\,x},y \left ( x \right ) =-ix,y \left ( x \right ) =ix,y \left ( x \right ) =-\sqrt {{\it \_C1}\, \left ( 2\,x+{\it \_C1} \right ) },y \left ( x \right ) =-\sqrt {{{\it \_C1}}^{2}-2\,{\it \_C1}\,x} \right \} \]