3.648   ODE No. 648

$$\boxed{{\displaystyle \frac{\mathrm{d}}{\mathrm{d}x}y\left(x\right)=-1/2\frac{x^3(\sqrt{a}x+\sqrt{a}-2\sqrt{a{x}^4+8y\left(x\right)})\sqrt{a}}{1+x}=0}}$$

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

Mathematica: cpu = 0.351044 (sec), leaf count = 128 $$\left\{\{y(x)\to \frac{1}{72}(-96a{c}_1{x}^3+144a{c}_1{x}^2-288a{c}_{1}x+288a{c}_1\log (x+1)+144a{c}_1^2-432a{c}_1+16a{x}^6-48a{x}^5+123a{x}^4-96a{x}^3\log (x+1)-72a{x}^2+144a{x}^2\log (x+1)+432ax+144a{\log }^2(x+1)-288ax\log (x+1)-432a\log (x+1)+324a)\}\right\}$$

Maple: cpu = 0.437 (sec), leaf count = 41 $$\{\frac{1}{4}\sqrt{a{x}^4+8y\left(x\right)}\frac{1}{\sqrt{a}}-\frac{x^3}{3}+\frac{x^2}{2}-x+\ln (1+x)-\mathit{\_}\mathit{C}\mathit{1}=0\}$$