Question

Use differences to find a pattern in the Sequences

-4,0,8,26,60,116,200
Assuming that the pattern continuos the eighth should be

Answer 1

@DanJS

Answer 2

@YanaSidlinskiy

Answer 3

Any ideae?

Answer 4

Differences in the terms are:
4, 8, 18, 34, 56, 84

But it looks like you got it.

Answer 5

Differences of differences are
4, 10, 16, 22, 28

which each have a difference of 6

Answer 6

That is Quadratic Sequence
f(n) = n^3 - 4n^2 + 9n - 10
f(8) = 318
eighth term is 318

Answer 7

Do you mean cubic?

Answer 8

And correct
http://www.wolframalpha.com/input/?i=n%5E3+-+4n%5E2+%2B+9n+-+10