29.19.10 problem 523

Internal problem ID [5119]
Book : Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section : Various 19
Problem number : 523
Date solved : Tuesday, March 04, 2025 at 07:59:19 PM
CAS classification : [_rational, [_Abel, `2nd type`, `class B`]]

\begin{align*} x \left (4+y\right ) y^{\prime }&=2 x +2 y+y^{2} \end{align*}

✓ Maple. Time used: 0.002 (sec). Leaf size: 121

ode:=x*(4+y(x))*diff(y(x),x) = 2*x+2*y(x)+y(x)^2; 
dsolve(ode,y(x), singsol=all);
 

\begin{align*} y \left (x \right ) &= \frac {-\sqrt {x +4}\, \sqrt {\frac {\left (x +4\right ) c_{1} -4}{x +4}}\, x -4 \sqrt {x}}{-\sqrt {x +4}\, \sqrt {\frac {\left (x +4\right ) c_{1} -4}{x +4}}+\sqrt {x}} \\ y \left (x \right ) &= \frac {\sqrt {x +4}\, \sqrt {\frac {\left (x +4\right ) c_{1} -4}{x +4}}\, x -4 \sqrt {x}}{\sqrt {x +4}\, \sqrt {\frac {\left (x +4\right ) c_{1} -4}{x +4}}+\sqrt {x}} \\ \end{align*}

✓ Mathematica. Time used: 1.185 (sec). Leaf size: 89

ode=x(4+y[x])D[y[x],x]==2 x+2 y[x]+y[x]^2; 
ic={}; 
DSolve[{ode,ic},y[x],x,IncludeSingularSolutions->True]
 

\begin{align*} y(x)\to -4+\frac {1}{\frac {1}{x+4}-\frac {\sqrt {x}}{(x+4)^{3/2} \sqrt {-\frac {4}{x+4}+c_1}}} \\ y(x)\to -4+\frac {1}{\frac {1}{x+4}+\frac {\sqrt {x}}{(x+4)^{3/2} \sqrt {-\frac {4}{x+4}+c_1}}} \\ y(x)\to x \\ \end{align*}

✗ Sympy

from sympy import * 
x = symbols("x") 
y = Function("y") 
ode = Eq(x*(y(x) + 4)*Derivative(y(x), x) - 2*x - y(x)**2 - 2*y(x),0) 
ics = {} 
dsolve(ode,func=y(x),ics=ics)
 

Timed Out