15.14 problem 14

Internal problem ID [14723]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 4. Higher Order Equations. Exercises 4.7, page 195
Problem number: 14.
ODE order: 3.
ODE degree: 1.

CAS Maple gives this as type [[_3rd_order, _with_linear_symmetries]]

\[ \boxed {x^{3} y^{\prime \prime \prime }-4 x^{2} y^{\prime \prime }-46 y^{\prime } x +100 y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 20

dsolve(x^3*diff(y(x),x$3)-4*x^2*diff(y(x),x$2)-46*x*diff(y(x),x)+100*y(x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {c_{2} x^{15}+c_{3} x^{7}+c_{1}}{x^{5}} \]

Solution by Mathematica

Time used: 0.004 (sec). Leaf size: 24

DSolve[x^3*y'''[x]-4*x^2*y''[x]-46*x*y'[x]+100*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {c_3 x^{15}+c_2 x^7+c_1}{x^5} \]