\[ 2 a^2 x+2 x^2 y'(x)-2 y(x)^2-x y(x)=0 \] ✓ Mathematica : cpu = 0.0132857 (sec), leaf count = 43
\[\left \{\left \{y(x)\to -\sqrt {-a^2} \sqrt {x} \tan \left (\frac {2 \sqrt {-a^2}}{\sqrt {x}}-c_1\right )\right \}\right \}\] ✓ Maple : cpu = 0.065 (sec), leaf count = 26
\[ \left \{ y \left ( x \right ) =i\tan \left ( {1 \left ( {\it \_C1}\,\sqrt {x}-2\,ia \right ) {\frac {1}{\sqrt {x}}}} \right ) \sqrt {x}a \right \} \]