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Iran MO (2nd Round)
1990 Iran MO (2nd round)
2
Solve (x^2-x)(x^2-2x+2)=y^2-1 [Iran Second Round 1990]
Solve (x^2-x)(x^2-2x+2)=y^2-1 [Iran Second Round 1990]
Source:
December 1, 2010
number theory proposed
number theory
Problem Statement
Find all integer solutions to the equation
(
x
2
−
x
)
(
x
2
−
2
x
+
2
)
=
y
2
−
1
(x^2-x)(x^2-2x+2)=y^2-1
(
x
2
−
x
)
(
x
2
−
2
x
+
2
)
=
y
2
−
1
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