SOLUTION: The nth term of a sequence is n²-n-2. Find the first 4 terms and the term which equals 208.

Question 1202987: The nth term of a sequence is n²-n-2. Find the first 4 terms and the term which equals 208.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
That just simple arithmetic. What difficulty are you having?
n is 1, 2, 3, 4; what is each term?
Which index if the term is equal to 208? Solve .

The term being 208:
n^2-n=210
n(n-1)=210
-
10*21, 20*10.5, 60*3.5
2*5*3*7
14*15
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Think 14 & 15.
n(n-1)=210=15*14

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