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Dutch IMO TST
2013 Dutch IMO TST
2
(4n-2)/(n+5) is squre of a rational
(4n-2)/(n+5) is squre of a rational
Source: Dutch IMO TST 2013 day 1 p2
August 29, 2019
Perfect Squares
number theory
rational
Problem Statement
Determine all integers
n
n
n
for which
4
n
−
2
n
+
5
\frac{4n-2}{n+5}
n
+
5
4
n
−
2
is the square of a rational number.
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