6.3 problem 3

Internal problem ID [123]

Book: Differential equations and linear algebra, 3rd ed., Edwards and Penney
Section: Chapter 1 review problems. Page 78
Problem number: 3.
ODE order: 1.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {y x +y^{2}-y^{\prime } x^{2}=0} \end {gather*}

Solution by Maple

Time used: 0.003 (sec). Leaf size: 15

dsolve(x*y(x)+y(x)^2-x^2*diff(y(x),x) = 0,y(x), singsol=all)
 

\[ y \relax (x ) = -\frac {x}{\ln \relax (x )-c_{1}} \]

Solution by Mathematica

Time used: 0.123 (sec). Leaf size: 21

DSolve[x*y[x]+y[x]^2-x^2*y'[x]== 0,y[x],x,IncludeSingularSolutions -> True]
 

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