x^3-x^2+9x-11
--------------------------------
x+1 i x^4 +8x^2-2x-14
x^4+x^3
---------------------------------
-x^3+8x^2-2x-14
-x^3- x^2
-----------------------------------
9x^2-2x-14
9x^2+9x
------------------------------------
-11x-14
-11x-11
---------------------------------------
-3