2.34 problem 35

Internal problem ID [512]

Book: Elementary differential equations and boundary value problems, 10th ed., Boyce and DiPrima
Section: Section 2.2. Page 48
Problem number: 35.
ODE order: 1.
ODE degree: 1.

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

\[ \boxed {y^{\prime }-\frac {x +3 y}{x -y}=0} \]

Solution by Maple

Time used: 0.031 (sec). Leaf size: 21

dsolve(diff(y(x),x) = (x+3*y(x))/(x-y(x)),y(x), singsol=all)
 

\[ y \left (x \right ) = -\frac {x \left (\operatorname {LambertW}\left (-2 c_{1} x \right )+2\right )}{\operatorname {LambertW}\left (-2 c_{1} x \right )} \]

Solution by Mathematica

Time used: 0.12 (sec). Leaf size: 33

DSolve[y'[x] == (x+3*y[x])/(x-y[x]),y[x],x,IncludeSingularSolutions -> True]
 

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