− t 3 + 4 t 2 − 8 t + 11 − 8 t + 4 t 2 − 1 t 3 {\displaystyle -t^{3}+4t^{2}-8t+11-{\frac {8}{t}}+{\frac {4}{t^{2}}}-{\frac {1}{t^{3}}}}
