HELP!!
n an
1 4
2 12
3 28
4 60
Which recursive equation represents the pattern?
an = an – 1 + 2n
an = an – 1 + 2(n + 1)
an = an – 1 + 2n + 1
an = an – 1 + 2n + 1

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All you need to do is to plug in both a and an and see which one is equal.

yeah, but what is the equation?

12 - 4 = 8
28 - 12 = 16
60 - 28 = 32
Why are the third and fourth choices equal?

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