\[ x^2 y'(x)-x y(x)-y(x)^2=0 \] ✓ Mathematica : cpu = 0.00975593 (sec), leaf count = 16
\[\left \{\left \{y(x)\to \frac {x}{c_1-\log (x)}\right \}\right \}\]
✓ Maple : cpu = 0.011 (sec), leaf count = 15
\[ \left \{ y \left ( x \right ) =-{\frac {x}{\ln \left ( x \right ) -{\it \_C1}}} \right \} \]