2.991   ODE No. 991

\[ y'(x)=\frac {y(x)}{x}-F(x) \left (x^2+2 x y(x)-y(x)^2\right ) \] Mathematica : cpu = 0.181947 (sec), leaf count = 104


\[\left \{\left \{y(x)\to -\frac {x \left (-\exp \left (2 \sqrt {2} \left (\int _1^xF(K[1]) K[1]dK[1]+c_1\right )\right )+\sqrt {2} \exp \left (2 \sqrt {2} \left (\int _1^xF(K[1]) K[1]dK[1]+c_1\right )\right )-1-\sqrt {2}\right )}{1+\exp \left (2 \sqrt {2} \left (\int _1^xF(K[1]) K[1]dK[1]+c_1\right )\right )}\right \}\right \}\] Maple : cpu = 0.035 (sec), leaf count = 29


\[y \relax (x ) = \frac {x \left (\sqrt {2}-2 \tanh \left (\left (c_{1}+\int F \relax (x ) x d x \right ) \sqrt {2}\right )\right ) \sqrt {2}}{2}\]