2.31 problem 31

Internal problem ID [917]

Book: Elementary differential equations with boundary value problems. William F. Trench. Brooks/Cole 2001
Section: Chapter 2, First order equations. Linear first order. Section 2.1 Page 41
Problem number: 31.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_linear]

\[ \boxed {2 y+y^{\prime } x=8 x^{2}} \] With initial conditions \begin {align*} [y \left (1\right ) = 3] \end {align*}

Solution by Maple

Time used: 0.0 (sec). Leaf size: 15

dsolve([x*diff(y(x),x)+2*y(x)=8*x^2,y(1) = 3],y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.027 (sec). Leaf size: 14

DSolve[{x*y'[x]+2*y[x]==8*x^2,y[1]==3},y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to 2 x^2+\frac {1}{x^2} \]