// 2 | 2| \
|| (5 + x) |(5 + x) | |
/ 2 | 2| || ----------------- for ---------- < 1|
| (5 + x) |(5 + x) | || 2 4 |
| ---------------- for ---------- < 1 || / 2\ |
| / 2\ 4 || | (5 + x) | |
| | (5 + x) | || 4*|1 - --------| |
| 4*|1 - --------| || \ 4 / |
| \ 4 / 2*|< |
< || oo |
| oo || ___ |
| ___ || \ ` |
| \ ` || \ -n 2*n |
| \ -n 2*n || / n*4 *(5 + x) otherwise |
| / 4 *(5 + x) otherwise || /__, |
| /__, ||n = 1 |
\n = 1 \\ /
- ----------------------------------------- + -----------------------------------------------
5 + x 5 + x
$$\frac{2 \left(\begin{cases} \frac{\left(x + 5\right)^{2}}{4 \left(1 - \frac{\left(x + 5\right)^{2}}{4}\right)^{2}} & \text{for}\: \frac{\left|{\left(x + 5\right)^{2}}\right|}{4} < 1 \\\sum_{n=1}^{\infty} 4^{- n} n \left(x + 5\right)^{2 n} & \text{otherwise} \end{cases}\right)}{x + 5} - \frac{\begin{cases} \frac{\left(x + 5\right)^{2}}{4 \left(1 - \frac{\left(x + 5\right)^{2}}{4}\right)} & \text{for}\: \frac{\left|{\left(x + 5\right)^{2}}\right|}{4} < 1 \\\sum_{n=1}^{\infty} 4^{- n} \left(x + 5\right)^{2 n} & \text{otherwise} \end{cases}}{x + 5}$$
-Piecewise(((5 + x)^2/(4*(1 - (5 + x)^2/4)), Abs((5 + x)^2)/4 < 1), (Sum(4^(-n)*(5 + x)^(2*n), (n, 1, oo)), True))/(5 + x) + 2*Piecewise(((5 + x)^2/(4*(1 - (5 + x)^2/4)^2), Abs((5 + x)^2)/4 < 1), (Sum(n*4^(-n)*(5 + x)^(2*n), (n, 1, oo)), True))/(5 + x)