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Brainstorm (What's Your Answer ?)

USONICIG

Postman
Joined
Dec 3, 2018
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100
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http://usonicig.com/ZIP/index.aspx
 
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C - 2

Move two from the 3 Zips to the left so it equals 3 - 1 = 2.
 
B:1
1-1=2 1^3+2^3+3^3+...+n^3 formula
 
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