73.25.17 problem 35.4 (c)

Internal problem ID [15725]
Book : Ordinary Differential Equations. An introduction to the fundamentals. Kenneth B. Howell. second edition. CRC Press. FL, USA. 2020
Section : Chapter 35. Modified Power series solutions and basic method of Frobenius. Additional Exercises. page 715
Problem number : 35.4 (c)
Date solved : Tuesday, January 28, 2025 at 08:06:03 AM
CAS classification : [[_2nd_order, _with_linear_symmetries]]

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (4 x -4\right ) y&=0 \end{align*}

Using series method with expansion around

\begin{align*} 0 \end{align*}

✓ Solution by Maple

Time used: 0.071 (sec). Leaf size: 58

Order:=6; 
dsolve(x^2*diff(y(x),x$2)+x*diff(y(x),x)+(4*x-4)*y(x)=0,y(x),type='series',x=0);
 

\[ y = \frac {c_{1} x^{4} \left (1-\frac {4}{5} x +\frac {4}{15} x^{2}-\frac {16}{315} x^{3}+\frac {2}{315} x^{4}-\frac {8}{14175} x^{5}+\operatorname {O}\left (x^{6}\right )\right )+c_{2} \left (\ln \left (x \right ) \left (256 x^{4}-\frac {1024}{5} x^{5}+\operatorname {O}\left (x^{6}\right )\right )+\left (-144-192 x -192 x^{2}-256 x^{3}+\frac {6144}{25} x^{5}+\operatorname {O}\left (x^{6}\right )\right )\right )}{x^{2}} \]

✓ Solution by Mathematica

Time used: 0.021 (sec). Leaf size: 79

AsymptoticDSolveValue[x^2*D[y[x],{x,2}]+x*D[y[x],x]+(4*x-4)*y[x]==0,y[x],{x,0,"6"-1}]
 

\[ y(x)\to c_1 \left (\frac {4 x^4+16 x^3+12 x^2+12 x+9}{9 x^2}-\frac {16}{9} x^2 \log (x)\right )+c_2 \left (\frac {2 x^6}{315}-\frac {16 x^5}{315}+\frac {4 x^4}{15}-\frac {4 x^3}{5}+x^2\right ) \]