Home > Just Math
Seventeen divides expression? (Posted on 2015-04-26) |
|
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.
Comments: (
You must be logged in to post comments.)
|
|
Please log in:
Forums (0)
Newest Problems
Random Problem
FAQ |
About This Site
Site Statistics
New Comments (7)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
|