8 x ----- x - 1
x^8/(x - 1)
1 + x + x^2 + x^3 + x^4 + x^5 + x^6 + x^7 + 1/(-1 + x)
2 3 4 5 6 7 1 1 + x + x + x + x + x + x + x + ------ -1 + x
x^8/(-1.0 + x)