2.421   ODE No. 421

\[ x y'(x)^2-2 y(x) y'(x)-x=0 \] Mathematica : cpu = 0.0470449 (sec), leaf count = 27


\[\{\{y(x)\to x \sinh (-\log (x)+c_1)\},\{y(x)\to x \sinh (\log (x)+c_1)\}\}\] Maple : cpu = 0.051 (sec), leaf count = 32


\[y \relax (x ) = -i x\]