33.5 problem 967

Internal problem ID [4200]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 33
Problem number: 967.
ODE order: 1.
ODE degree: 2.

CAS Maple gives this as type [_separable]

\[ \boxed {x y {y^{\prime }}^{2}+\left (3 x^{2}-2 y^{2}\right ) y^{\prime }-6 y x=0} \]

Solution by Maple

Time used: 0.016 (sec). Leaf size: 35

dsolve(x*y(x)*diff(y(x),x)^2+(3*x^2-2*y(x)^2)*diff(y(x),x)-6*x*y(x) = 0,y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.131 (sec). Leaf size: 54

DSolve[x y[x] (y'[x])^2+(3 x^2-2 y[x]^2)y'[x]-6 x y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

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