2.863   ODE No. 863

1. Problem in Latex
2. Mathematica input
3. Maple input

$$y^{\prime }(x)=\frac{x^4\sqrt{x^2+y(x{)}^2}+x^3\sqrt{x^2+y(x{)}^2}+x\sqrt{x^2+y(x{)}^2}+y(x)}{x}$$ ✓ Mathematica : cpu = 0.168677 (sec), leaf count = 30

$$\left\{\{y(x)\to x\sinh \left(\frac{1}{12}(3x^4+4x^3+12x+12c_1)\right)\}\right\}$$ ✓ Maple : cpu = 12.839 (sec), leaf count = 38

$$\{\ln (\sqrt{{\left(y\left(x\right)\right)}^2+x^2}+y\left(x\right))-\frac{x^4}{4}-\frac{x^3}{3}-x-\ln \left(x\right)-\mathit{\_}\mathit{C}\mathit{1}=0\}$$