20.11 problem 556

Internal problem ID [3808]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 20
Problem number: 556.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_exact, _rational, [_Abel, `2nd type`, `class B`]]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 71

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

\begin{align*} y \left (x \right ) = \frac {-x^{2}-3+\sqrt {x^{4}-12 x^{3}-12 c_{1} x +6 x^{2}+9}}{6 x} y \left (x \right ) = -\frac {x^{2}+\sqrt {x^{4}-12 x^{3}-12 c_{1} x +6 x^{2}+9}+3}{6 x} \end{align*}

Solution by Mathematica

Time used: 0.531 (sec). Leaf size: 83

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

\begin{align*} y(x)\to -\frac {x^2+\sqrt {x^4-12 x^3+6 x^2+36 c_1 x+9}+3}{6 x} y(x)\to -\frac {x^2-\sqrt {x^4-12 x^3+6 x^2+36 c_1 x+9}+3}{6 x} \end{align*}