SOLUTION: The nth term of a sequence is given by the formula n^2+2n How much larger is the 10th term of the sequence than the 9th term?

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Question 265912: The nth term of a sequence is given by the formula n^2+2n How much larger is the 10th term of the sequence than the 9th term?
Answer by asuar010(338) About Me  (Show Source):
You can put this solution on YOUR website!
All you need to do is substitute the n by 10 and 9 respectively and subtract. The answer is (10^2+20)-(9^2+18)=21.