SOLUTION: 2,7,3,26,4,- what will be the next number?

Algebra.Com
Question 817190: 2,7,3,26,4,-
what will be the next number?

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
I ran a quartic regression on the numbers and got::
f(x) = -4.5x*4 + 51x^3 - 198x^2 + 309.5x - 156
----
So the 6th term = f(6) = -243
==============
Cheers,
Stan H.
===============

RELATED QUESTIONS

What is the next number in these 4 sequences? 1. 3, -6, 12, 4, 20, ? 2. 7, 16, 8, 27,... (answered by richwmiller)
What is the next number in this pattern. 3 -6 12 4 20 Next number in this pattern 7... (answered by Edwin McCravy)
Next number in sequence for the following: 7 16 8 27 9 3 -6 12 4 20 2 7 26 101... (answered by Edwin McCravy)
What's the next number in these four sequences... 3, -6, 12, 4, 20, ? 7, 16, 8, 27, (answered by Alan3354,MathLover1,greenestamps)
What is the next number 32, 26, 8,... (answered by josgarithmetic)
what is the next # in the sequences below 3, -6, 12, 4, 20, ? 7, 16, 8, 27, 9, ? 2,... (answered by ikleyn)
What is the next number in sequence 7, 2 , 0, 7, 8 , 4 , 3... (answered by addingup)
What is the next number in the sequence: 2 3 4 3 6... (answered by Edwin McCravy)
What is the next number in the sequence 2, 1, 3, 4, 7, 11,... (answered by Targetweek)