13.3 problem 23

Internal problem ID [5414]

Book: Schaums Outline. Theory and problems of Differential Equations, 1st edition. Frank Ayres. McGraw Hill 1952
Section: Chapter 18. Linear equations with variable coefficients (Equations of second order). Supplemetary problems. Page 120
Problem number: 23.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {\left (x^{2}+4\right ) y^{\prime \prime }-2 y^{\prime } x +2 y=8} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 16

dsolve((x^2+4)*diff(y(x),x$2)-2*x*diff(y(x),x)+2*y(x)=8,y(x), singsol=all)
 

\[ y = c_{2} x +\left (x^{2}-4\right ) c_{1} +4 \]

Solution by Mathematica

Time used: 0.048 (sec). Leaf size: 22

DSolve[(x^2+4)*y''[x]-2*x*y'[x]+2*y[x]==8,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to c_1 (x-2 i)^2-c_2 x+4 \]