SOLUTION: -1, -4, ___, 224 If the nth term in the sequence given above is identified as n^n - 2n^2 what is the value of the missing term?

Algebra ->  Sequences-and-series -> SOLUTION: -1, -4, ___, 224 If the nth term in the sequence given above is identified as n^n - 2n^2 what is the value of the missing term?      Log On


   



Question 343964: -1, -4, ___, 224 If the nth term in the sequence given above is identified as
n^n - 2n^2 what is the value of the missing term?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
NEED TO KNOW:
Understanding "nth term" as relating to the placement of a number in a sequence
Let x%5Bn%5D represent each of the values in the sequence
QUESTION STATES THE FOLLOWING TO BE TRUE.
x%5Bn%5D+=+n%5E%282%29-2n%5E%282%29
AS TO A THIRD TERM. X%5B3%5D AS YOU HAVE PRESENTED IT.
x%5B3%5D+=+3%5E%282%29-2%2A3%5E%282%29