6.28 problem 174

Internal problem ID [3430]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 6
Problem number: 174.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class D`], _rational, _Bernoulli]

\[ \boxed {x y^{\prime }-\left (1+y x \right ) y=0} \]

Solution by Maple

Time used: 0.016 (sec). Leaf size: 18

dsolve(x*diff(y(x),x) = (1+x*y(x))*y(x),y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {2 x}{-x^{2}+2 c_{1}} \]

Solution by Mathematica

Time used: 0.131 (sec). Leaf size: 23

DSolve[x y'[x]==(1+x y[x])y[x],y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to -\frac {2 x}{x^2-2 c_1} y(x)\to 0 \end{align*}