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Pre-Preparation Course Examination
2007 Pre-Preparation Course Examination
9
On equation 4xy-x-y=z^2- Iran 3rd round-Number Theory 2007
On equation 4xy-x-y=z^2- Iran 3rd round-Number Theory 2007
Source:
July 28, 2010
modular arithmetic
number theory unsolved
number theory
Problem Statement
Solve the equation
4
x
y
−
x
−
y
=
z
2
4xy-x-y=z^2
4
x
y
−
x
−
y
=
z
2
in positive integers.
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