24.11 problem 673

Internal problem ID [3412]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 24
Problem number: 673.
ODE order: 1.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {x \left (-y x +1\right )^{2} y^{\prime }+\left (1+x^{2} y^{2}\right ) y=0} \end {gather*}

Solution by Maple

Time used: 0.074 (sec). Leaf size: 34

dsolve(x*(1-x*y(x))^2*diff(y(x),x)+(1+x^2*y(x)^2)*y(x) = 0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {{\mathrm e}^{\RootOf \left (-2 \,{\mathrm e}^{\textit {\_Z}} \ln \relax (x )-{\mathrm e}^{2 \textit {\_Z}}+2 c_{1} {\mathrm e}^{\textit {\_Z}}+2 \textit {\_Z} \,{\mathrm e}^{\textit {\_Z}}+1\right )}}{x} \]

Solution by Mathematica

Time used: 0.125 (sec). Leaf size: 25

DSolve[x(1-x y[x])^2 y'[x]+(1+x^2 y[x]^2)y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ \text {Solve}\left [x y(x)-\frac {1}{x y(x)}-2 \log (y(x))=c_1,y(x)\right ] \]