16.7 problem 450

Internal problem ID [3704]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 16
Problem number: 450.
ODE order: 1.
ODE degree: 1.

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

\[ \boxed {\left (5-2 x -y\right ) y^{\prime }-2 y=-4+x} \]

Solution by Maple

Time used: 0.172 (sec). Leaf size: 32

dsolve((5-2*x-y(x))*diff(y(x),x)+4-x-2*y(x) = 0,y(x), singsol=all)
 

\[ y \left (x \right ) = 1-\frac {2 c_{1} \left (x -2\right )+\sqrt {3 \left (x -2\right )^{2} c_{1}^{2}+1}}{c_{1}} \]

Solution by Mathematica

Time used: 0.172 (sec). Leaf size: 53

DSolve[(5-2 x-y[x])y'[x]+4-x-2 y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to -\sqrt {3 x^2-12 x+25+c_1}-2 x+5 y(x)\to \sqrt {3 x^2-12 x+25+c_1}-2 x+5 \end{align*}