5.9 problem 1(i)

Internal problem ID [6211]

Book: Differential Equations: Theory, Technique, and Practice by George Simmons, Steven Krantz. McGraw-Hill NY. 2007. 1st Edition.
Section: Chapter 1. What is a differential equation. Section 1.7. Homogeneous Equations. Page 28
Problem number: 1(i).
ODE order: 1.
ODE degree: 1.

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

\[ \boxed {x^{2} y^{\prime }-2 x y-y^{2}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 15

dsolve(x^2*diff(y(x),x)=y(x)^2+2*x*y(x),y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.141 (sec). Leaf size: 23

DSolve[x^2*y'[x]==y[x]^2+2*x*y[x],y[x],x,IncludeSingularSolutions -> True]
 

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