What are the next three numbers in the pattern: 2, -4, 6, -8, 10

3 answers

Please follow directions and type your school SUBJECT into the appropriate box.
there are two interlocking sequences:

2,6,10,14,18
-4,-8,-12,-16,-20

so, the next 3 terms are -12,14,-16

or, you could call Tn = -2n*(-1)^n, n=1,2,3...
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