SOLUTION: Find the next two terms of the following sequence: 13,4,-11,-32,...

Question 1085312: Find the next two terms of the following sequence: 13,4,-11,-32,...
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
13,4,-11,-32
--------------------
13-4 = 9
4-15 = -11
from 9 to 15 = 6
-11-21 = -32
from 15 to 21 = 6
See the pattern? So:
-21-6 = -27, -32-27 = -59 this is your 5th number
-27-6 = -33; -59-33 = -92 this is your 6th number
For your info, this is a quadratic sequence.

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