/ 2 \
| 4*(-1 + x) 3*(-1 + x) 2 |
| 1 - ---------- + ----------- 2 / -1 + x\ / -1 + x\|
| 1 + x 2 4*(-1 + x) *|-1 + ------| 4*(-1 + x)*|-1 + ------||
/ -1 + x\ | (1 + x) \ 1 + x / \ 1 + x /|
2*|-1 + ------|*|-3 + ---------------------------- - -------------------------- + ------------------------|
\ 1 + x / | 2 2 / 2\ |
| (-1 + x) / 2\ | (-1 + x) | |
| 1 + --------- 2 | (-1 + x) | (1 + x)*|1 + ---------| |
| 2 (1 + x) *|1 + ---------| | 2| |
| (1 + x) | 2| \ (1 + x) / |
\ \ (1 + x) / /
-----------------------------------------------------------------------------------------------------------
/ 2\
3 | (-1 + x) |
(1 + x) *|1 + ---------|
| 2|
\ (1 + x) /