/ / 15*x / x\\
| |-75 - ---- 375*log|1 - -||
| | 2 \ 5/|
|x*|---------- - --------------|
| | 2 3 |
| \ x x /
|------------------------------- for And(x >= -5, x < 5)
| 15
|
< oo
| ____
| \ `
| \ -n n
| \ 5 *x
| / ------ otherwise
| / 2 + n
| /___,
| n = 1
\
$$\begin{cases} \frac{x \left(\frac{- \frac{15 x}{2} - 75}{x^{2}} - \frac{375 \log{\left(1 - \frac{x}{5} \right)}}{x^{3}}\right)}{15} & \text{for}\: x \geq -5 \wedge x < 5 \\\sum_{n=1}^{\infty} \frac{5^{- n} x^{n}}{n + 2} & \text{otherwise} \end{cases}$$
Piecewise((x*((-75 - 15*x/2)/x^2 - 375*log(1 - x/5)/x^3)/15, (x >= -5)∧(x < 5)), (Sum(5^(-n)*x^n/(2 + n), (n, 1, oo)), True))