\[ \left (y(x)^2+x\right ) y''(x)-2 \left (x-y(x)^2\right ) y'(x)^3+\left (4 y(x) y'(x)+1\right ) y'(x)=0 \] ✓ Mathematica : cpu = 1.03469 (sec), leaf count = 26
\[\text {Solve}\left [x=c_2 e^{e^{-c_1} y(x)}-y(x)^2,y(x)\right ]\] ✓ Maple : cpu = 0.125 (sec), leaf count = 23
\[ \left \{ {\frac {-y \left ( x \right ) {\it \_C1}+\ln \left ( x+ \left ( y \left ( x \right ) \right ) ^{2} \right ) +{\it \_C2}+2}{y \left ( x \right ) }}=0 \right \} \]