\[ y(x) y'(x)+x y(x)^2-4 x=0 \] ✓ Mathematica : cpu = 0.0902105 (sec), leaf count = 47
\[\left \{\left \{y(x)\to -\sqrt {4+e^{-x^2+2 c_1}}\right \},\left \{y(x)\to \sqrt {4+e^{-x^2+2 c_1}}\right \}\right \}\] ✓ Maple : cpu = 0.028 (sec), leaf count = 33
\[y \relax (x ) = \sqrt {{\mathrm e}^{-x^{2}} c_{1}+4}\]