SOLUTION: The next two terms of the sequence -1, 2, 12, 40? Please explain how you solve it. Thanks in advance

SOLUTION: The next two terms of the sequence -1, 2, 12, 40? Please explain how you solve it. Thanks in advance

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Question 957953: The next two terms of the sequence -1, 2, 12, 40? Please explain how you solve it. Thanks in advance
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
-1
2 (2-(-1))*4=12 Subtract the one above, multiply by 4.
12 (12-2)*4=40
40 (40-12)*4=112 ANSWER 1: The next number
112 (112-40)*4=288 ANSWER 2: The second number
228
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