\[ \left (x^2-4\right ) y'(x)+(x+2) y(x)^2-4 y(x)=0 \] ✓ Mathematica : cpu = 0.134792 (sec), leaf count = 27
\[\left \{\left \{y(x)\to \frac {2-x}{(x+2) (-\log (x+2)+c_1)}\right \}\right \}\] ✓ Maple : cpu = 0.032 (sec), leaf count = 21
\[y \relax (x ) = \frac {x -2}{\left (\ln \left (x +2\right )+c_{1}\right ) \left (x +2\right )}\]