MathDB
Problems
Contests
National and Regional Contests
PEN Problems
PEN H Problems
6
H 6
H 6
Source:
May 25, 2007
Diophantine Equations
number theory
pen
Problem Statement
Show that there are infinitely many pairs
(
x
,
y
)
(x, y)
(
x
,
y
)
of rational numbers such that
x
3
+
y
3
=
9
x^3 +y^3 =9
x
3
+
y
3
=
9
.
Back to Problems
View on AoPS