I hope this explains it:
(Work and info in attachment)
ANSWER
(-∞,+∞)
EXPLANATION
The given polynomial function is:

The domain refers to all values of x that make the function defined.
Polynomial functions are defined for all real values of x
The domain is the set of all real numbers.
This is written in symbolic representation as
(-∞,+∞)
it depends on how many you answer how many thanks you get and five stars.
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Unit 37-A do you copy?
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The end
Answer:
666
Step-by-step explanation:
666