Internal problem ID [4021]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 27
Problem number: 781.
ODE order: 1.
ODE degree: 2.
CAS Maple gives this as type [[_1st_order, _with_linear_symmetries], _Clairaut]
\[ \boxed {{y^{\prime }}^{2}+x y^{\prime }-y=0} \]
✓ Solution by Maple
Time used: 0.062 (sec). Leaf size: 17
dsolve(diff(y(x),x)^2+x*diff(y(x),x)-y(x) = 0,y(x), singsol=all)
\begin{align*} y \left (x \right ) &= -\frac {x^{2}}{4} \\ y \left (x \right ) &= c_{1} \left (c_{1} +x \right ) \\ \end{align*}
✓ Solution by Mathematica
Time used: 0.009 (sec). Leaf size: 23
DSolve[(y'[x])^2+x y'[x]-y[x]==0,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to c_1 (x+c_1) \\ y(x)\to -\frac {x^2}{4} \\ \end{align*}