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> Just Math (2)> Science> Algorithms
x, y are integers, and 17 divides both the expressions x2-2xy+y2-5x+7y and x2-3xy+2y2+x-y.

Does 17 always divide xy-12x+15y, for every choice of x and y?

If not, give an example.
If so, prove it.

(No Solution Yet, 1 Comments) Submitted on 2015-04-26 by K Sengupta   
Difficulty: 3 of 5 Bonus: even sequence (in Sequences) Rating: 2.86

find the next 5 numbers in this sequence...

28, 32, 34, 32, 34, 36, 40, 38, 38, 40, 36, 38, 40

(Solution Posted, 6 Comments) Submitted on 2004-10-20 by GOM   
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Posted on 2015-04-17 by K Sengupta (No Solution Yet, 5 Comments)

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