Answer:

Step-by-step explanation:
<u>Step 1: Set x to -1 and solve</u>
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Answer: 
Looks correct. :)...........
Answer:
2 terms
Step-by-step explanation:
Yes. When solving a problem like this, multiply the base numbers normally, and add the exponents together.
If you need more help, comment below and I'd be happy to assist.
I'm going to have to say C.