Internal
problem
ID
[15449]
Book
:
Ordinary
Differential
Equations.
An
introduction
to
the
fundamentals.
Kenneth
B.
Howell.
second
edition.
CRC
Press.
FL,
USA.
2020
Section
:
Chapter
22.
Method
of
undetermined
coefficients.
Additional
exercises
page
412
Problem
number
:
22.7
(c)
Date
solved
:
Tuesday, January 28, 2025 at 07:56:13 AM
CAS
classification
:
[[_2nd_order, _linear, _nonhomogeneous]]
✓ Solution by Maple
Time used: 0.008 (sec). Leaf size: 28
dsolve(diff(y(x),x$2)+9*y(x)=54*x^2*exp(3*x),y(x), singsol=all)
✓ Solution by Mathematica
Time used: 0.021 (sec). Leaf size: 36
DSolve[D[y[x],{x,2}]+9*y[x]==54*x^2*Exp[3*x],y[x],x,IncludeSingularSolutions -> True]