Internal problem ID [2340]
Book: Differential Equations by Alfred L. Nelson, Karl W. Folley, Max Coral. 3rd ed. DC heath.
Boston. 1964
Section: Exercise 38, page 173
Problem number: 3.
ODE order: 1.
ODE degree: 2.
CAS Maple gives this as type [[_homogeneous, `class A`], _rational, _dAlembert]
\[ \boxed {2 y^{\prime } y-{y^{\prime }}^{2} x=-x} \]
✓ Solution by Maple
Time used: 0.015 (sec). Leaf size: 22
dsolve(x+2*diff(y(x),x)*y(x)=diff(y(x),x)^2*x,y(x), singsol=all)
\begin{align*} y \left (x \right ) = \frac {\left (\frac {x^{2}}{c_{1}^{2}}-1\right ) c_{1}}{2} y \left (x \right ) = c_{1} x \end{align*}
✓ Solution by Mathematica
Time used: 0.133 (sec). Leaf size: 71
DSolve[x+2*y'[x]*y[x]==y'[x]^2*x,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {1}{2} e^{-c_1} \left (-x^2+e^{2 c_1}\right ) y(x)\to \frac {1}{2} e^{-c_1} \left (-1+e^{2 c_1} x^2\right ) y(x)\to -i x y(x)\to i x \end{align*}