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Diophantine Equations
hard
0:00.0
How many solutions in positive integers for
x
2
+
y
2
=
25
x^2 + y^2 = 25
x
2
+
y
2
=
25
?
A
2
2
2
B
4
4
4
C
1
1
1
D
12
12
12
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