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Diophantine Equations
hard
0:00.0
Find the number of integer solutions
(
x
,
y
)
(x, y)
(
x
,
y
)
to
x
2
−
y
2
=
13
x^2 - y^2 = 13
x
2
−
y
2
=
13
.
A
0
B
2
C
4
D
8
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