Difference between revisions of "2006 IMO Problems/Problem 4"
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| − | Determine all pairs <math>(x, y)</math> of | + | ===Problem=== |
| + | Determine all pairs <math>(x, y)</math> of integers such that <cmath>1+2^{x}+2^{2x+1}= y^{2}.</cmath> | ||
Revision as of 13:27, 2 October 2012
Problem
Determine all pairs 
of integers such that ![\[1+2^{x}+2^{2x+1}= y^{2}.\]](http://latex.artofproblemsolving.com/9/c/8/9c81ffa59a374578a1dba99ad772902ea17ebadb.png)
