1.157 problem 159

Internal problem ID [7647]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 159.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {9 x^{2} \left (x +3\right ) y^{\prime \prime }+3 x \left (3+7 x \right ) y^{\prime }+\left (3+4 x \right ) y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 27

dsolve(9*x^2*(3+x)*diff(y(x),x$2)+3*x*(3+7*x)*diff(y(x),x)+(3+4*x)*y(x)=0,y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.039 (sec). Leaf size: 24

DSolve[9*x^2*(3+x)*y''[x]+3*x*(3+7*x)*y'[x]+(3+4*x)*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(x)\to \frac {\sqrt [3]{x} (c_2 \log (x)+c_1)}{x+3} \]