Here's a setup for #6 as an example, just because coefficient on x^3 and x^1 are both 0.
I will do the first two terms only; and you can think about all the rest...
x^3 -2x^2
_____________________________________________
x+2 | x^4 +0x^3 -6x^2 + 0x - 27
|
| x^4 2x^3
--------------
0 -2x^3 -6x^2
-2x^3 -4x^2
---------------
0 -2x^2
You continue the process and finish.