Thursday, November 20, 2008
November 20, 2008
Let
x
and
y
be two-digit integers such that
y
is obtained by reversing the digits of
x
. The integers
x
and
y
satisfy
x
2
–
y
2
=
m
2
for some positive integer
m
. What is
x
+
y
+
m
?
Interactive version of problem and solution.
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