Answer:
20
step by step explanation:
Answer: 
Not a factor because there is a remainder.
Step-by-step explanation:
Let's use synthetic division to solve this..
-1 ║ 2 | 4 | -2 | -8
║ | -2| -2 | 4
║ 2 | 2| -4 | -4

PS: if anyone knows a better way to do a synthetic division chart please let me know.
Answer:
The answer is 128 sq ft. If you want proof, please ask in the comments.
Hope this helps!
Answer:
(4x+1)^2
Step-by-step explanation:
Anything times itself is itself squared