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2005 Alabama ARML TST Problems/Problem 8

Revision as of 11:42, 11 December 2007 by 1=2 (talk | contribs)

Problem

Find the number of ordered pairs of integers $(x,y)$ which satisfy

$x^2+4xy+y^2=21$.

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.


See Also

2005 Alabama ARML TST (Problems)
Preceded by:
Problem 7 		Followed by:
Problem 9
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15
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