/ 4 \
4*|1 - -------------------------|
| / 4 \ 2|
| |1 + ---------|*(-3 + x) |
| | 2| |
\ \ (-3 + x) / /
---------------------------------
/ 4 \ 3
|1 + ---------|*(-3 + x)
| 2|
\ (-3 + x) /
$$\frac{4 - \frac{16}{\left(1 + \frac{4}{\left(x - 3\right)^{2}}\right) \left(x - 3\right)^{2}}}{\left(1 + \frac{4}{\left(x - 3\right)^{2}}\right) \left(x - 3\right)^{3}}$$
/ 64 28 \
4*|-3 - -------------------------- + -------------------------|
| 2 / 4 \ 2|
| / 4 \ 4 |1 + ---------|*(-3 + x) |
| |1 + ---------| *(-3 + x) | 2| |
| | 2| \ (-3 + x) / |
\ \ (-3 + x) / /
---------------------------------------------------------------
/ 4 \ 4
|1 + ---------|*(-3 + x)
| 2|
\ (-3 + x) /
$$\frac{1}{\left(1 + \frac{4}{\left(x - 3\right)^{2}}\right) \left(x - 3\right)^{4}} \left(-12 + \frac{112}{\left(1 + \frac{4}{\left(x - 3\right)^{2}}\right) \left(x - 3\right)^{2}} - \frac{256}{\left(1 + \frac{4}{\left(x - 3\right)^{2}}\right)^{2} \left(x - 3\right)^{4}}\right)$$