Internal problem ID [6855]
Book: Collection of Kovacic problems
Section: section 1
Problem number: 124.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]
\[ \boxed {2 x^{2} \left (x +2\right ) y^{\prime \prime }+5 y^{\prime } x^{2}+\left (1+x \right ) y=0} \]
✓ Solution by Maple
Time used: 0.031 (sec). Leaf size: 48
dsolve(2*x^2*(2+x)*diff(y(x),x$2)+5*x^2*diff(y(x),x)+(1+x)*y(x)=0,y(x), singsol=all)
\[ y \left (x \right ) = \frac {c_{1} \sqrt {x}}{\left (x +2\right )^{\frac {3}{2}}}+\frac {c_{2} \sqrt {x}\, \left (\sqrt {2}\, \sqrt {x +2}-2 \,\operatorname {arctanh}\left (\frac {\sqrt {2}\, \sqrt {x +2}}{2}\right )\right )}{\left (x +2\right )^{\frac {3}{2}}} \]
✓ Solution by Mathematica
Time used: 0.046 (sec). Leaf size: 55
DSolve[2*x^2*(2+x)*y''[x]+5*x^2*y'[x]+(1+x)*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to \frac {\sqrt {x} \left (-2 \sqrt {2} c_2 \text {arctanh}\left (\frac {\sqrt {x+2}}{\sqrt {2}}\right )+2 c_2 \sqrt {x+2}+c_1\right )}{(x+2)^{3/2}} \\ \end{align*}