3.201 problem 1201

Internal problem ID [9536]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1201.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {x^{2} y^{\prime \prime }+x \left (1+2 x \right ) y^{\prime }-4 y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 34

dsolve(x^2*diff(diff(y(x),x),x)+x*(2*x+1)*diff(y(x),x)-4*y(x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {c_{1} \left (2 x^{2}-4 x +3\right )}{x^{2}}+\frac {c_{2} {\mathrm e}^{-2 x} \left (2 x +3\right )}{x^{2}} \]

Solution by Mathematica

Time used: 0.074 (sec). Leaf size: 44

DSolve[-4*y[x] + x*(1 + 2*x)*y'[x] + x^2*y''[x] == 0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {e^{-2 x} \left (c_2 e^{2 x} \left (2 x^2-4 x+3\right )+c_1 (4 x+6)\right )}{4 x^2} \]