\[ y'(x)=\frac {y(x)}{x}-F(x) \left (-a y(x)^2-b x^2\right ) \] ✓ Mathematica : cpu = 0.159796 (sec), leaf count = 56
\[\left \{\left \{y(x)\to \frac {\sqrt {b} x \tan \left (\sqrt {a} \sqrt {b} \int _1^xF(K[1]) K[1]dK[1]+\sqrt {a} \sqrt {b} c_1\right )}{\sqrt {a}}\right \}\right \}\] ✓ Maple : cpu = 0.263 (sec), leaf count = 29
\[ \left \{ y \left ( x \right ) ={\frac {x}{a}\tan \left ( \sqrt {ab} \left ( {\it \_C1}+\int \!F \left ( x \right ) x\,{\rm d}x \right ) \right ) \sqrt {ab}} \right \} \]