8.7.17 problem 33

Internal problem ID [823]
Book : Differential equations and linear algebra, 3rd ed., Edwards and Penney
Section : Section 5.1, second order linear equations. Page 299
Problem number : 33
Date solved : Monday, January 27, 2025 at 03:09:20 AM
CAS classification : [[_2nd_order, _missing_x]]

\begin{align*} y^{\prime \prime }-3 y^{\prime }+2 y&=0 \end{align*}

Solution by Maple

Time used: 0.003 (sec). Leaf size: 15

dsolve(diff(y(x),x$2)-3*diff(y(x),x)+2*y(x)=0,y(x), singsol=all)
 
\[ y = c_1 \,{\mathrm e}^{2 x}+c_2 \,{\mathrm e}^{x} \]

Solution by Mathematica

Time used: 0.011 (sec). Leaf size: 18

DSolve[D[y[x],{x,2}]-3*D[y[x],x]+2*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 
\[ y(x)\to e^x \left (c_2 e^x+c_1\right ) \]