Internal problem ID [3554]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 29
Problem number: 823.
ODE order: 1.
ODE degree: 2.
CAS Maple gives this as type [_separable]
Solve \begin {gather*} \boxed {\left (y^{\prime }\right )^{2}-\left (x -y\right ) y y^{\prime }-x y^{3}=0} \end {gather*}
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 20
dsolve(diff(y(x),x)^2-(x-y(x))*y(x)*diff(y(x),x)-x*y(x)^3 = 0,y(x), singsol=all)
\begin{align*} y \relax (x ) = \frac {1}{x +c_{1}} \\ y \relax (x ) = c_{1} {\mathrm e}^{\frac {x^{2}}{2}} \\ \end{align*}
✓ Solution by Mathematica
Time used: 0.128 (sec). Leaf size: 34
DSolve[(y'[x])^2-(x-y[x])y[x] y'[x]-x y[x]^3==0,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {1}{x-c_1} \\ y(x)\to c_1 e^{\frac {x^2}{2}} \\ y(x)\to 0 \\ \end{align*}