SOLUTION: Do you know the rules of adding and subtracting a polynomials?Please give me. I really really need it for our lesson in this quarter. And i also had a question for you, answer it

Question 235988: Do you know the rules of adding and subtracting a polynomials?Please give me. I really really need it for our lesson in this quarter. And i also had a question for you, answer it and tell me how do you perform the problem:
(7 - 8v^3 + 9v^2 + 4v) + (9v^3 - 8v^2 + 4v + 6)
Please add it. And also please answer my questions.
THANK YOU!
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
The rule is you only add or subtract like terms.
(7-8v^3+9v^2+4v)
(6+9v^3-8v^2+4v) add these.
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13+v^3+v^2+8v ans.
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