6.6 problem Exercise 12.6, page 103

Internal problem ID [4018]

Book: Ordinary Differential Equations, By Tenenbaum and Pollard. Dover, NY 1963
Section: Chapter 2. Special types of differential equations of the first kind. Lesson 12, Miscellaneous Methods
Problem number: Exercise 12.6, page 103.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class C`], _dAlembert]

\[ \boxed {\left (-y+x \right )^{2} y^{\prime }-4=0} \]

Solution by Maple

Time used: 0.125 (sec). Leaf size: 27

dsolve((x-y(x))^2*diff(y(x),x)=4,y(x), singsol=all)
 

\[ y \left (x \right )-\ln \left (y \left (x \right )-x +2\right )+\ln \left (y \left (x \right )-x -2\right )-c_{1} = 0 \]

Solution by Mathematica

Time used: 0.211 (sec). Leaf size: 36

DSolve[(x-y[x])^2*y'[x]==4,y[x],x,IncludeSingularSolutions -> True]
 

\[ \text {Solve}\left [y(x)-4 \left (\frac {1}{4} \log (y(x)-x+2)-\frac {1}{4} \log (-y(x)+x+2)\right )=c_1,y(x)\right ] \]