schrockmom schrockmom

10-06-2017
Mathematics

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What are the first four terms of the sequence represented by the expression n (n-1) -4?

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mcinb001 mcinb001

11-06-2017

n= 1
1(1-1)-4 = 0-4 = -4

n=2
2(2-1)-4= 2-4= -2

n=3
3(3-1)-4= 6-4= 2

n=4
4(4-1)-4= 12-4= 8

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