3.17 problem 17

Internal problem ID [6453]

Book: Own collection of miscellaneous problems
Section: section 3.0
Problem number: 17.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

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

Solution by Maple

Time used: 0.015 (sec). Leaf size: 18

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

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

Solution by Mathematica

Time used: 0.003 (sec). Leaf size: 23

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

\begin{align*} y(x)\to c_2 x^2+\frac {c_1}{x^2}-\frac {x}{3} \\ \end{align*}