Answer:
I think x = -8. Hope this helps!! :)
10k^4+10k^3+8k^2+8k+10/k+1 not sure if this is what you are looking for or not hope it helps
Domain is everything below 0. Range is all real numbers. It is a function as it passes the vertical line test.
Answer:

Step-by-step explanation:
Use the distributive property.


We will get 
Hope this helps!