2.641   ODE No. 641

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

$$y^{\prime }(x)=\frac{x^4\sqrt{4x^{2}y(x)+1}+\frac{1}{2}}{x^3}$$ ✓ Mathematica : cpu = 0.198573 (sec), leaf count = 35

$$\left\{\{y(x)\to \frac{4x^8-24c_1{x}^5+36c_1{}^2{x}^2-9}{36x^2}\}\right\}$$ ✓ Maple : cpu = 0.455 (sec), leaf count = 26

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