10.5 problem 271

Internal problem ID [3527]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 10
Problem number: 271.
ODE order: 1.
ODE degree: 1.

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

\[ \boxed {x^{2} y^{\prime }-2 y \left (x -y^{2}\right )=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 39

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

\begin{align*} y \left (x \right ) = -\frac {3 x^{2}}{\sqrt {12 x^{3}+9 c_{1}}} y \left (x \right ) = \frac {3 x^{2}}{\sqrt {12 x^{3}+9 c_{1}}} \end{align*}

Solution by Mathematica

Time used: 0.238 (sec). Leaf size: 51

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

\begin{align*} y(x)\to -\frac {x^2}{\sqrt {\frac {4 x^3}{3}+c_1}} y(x)\to \frac {x^2}{\sqrt {\frac {4 x^3}{3}+c_1}} y(x)\to 0 \end{align*}