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China Team Selection Test
1993 China Team Selection Test
1
2 * x^4 + 1 = y^2
2 * x^4 + 1 = y^2
Source: China TST 1993, problem 4
June 27, 2005
modular arithmetic
number theory
greatest common divisor
number theory unsolved
Problem Statement
Find all integer solutions to
2
x
4
+
1
=
y
2
.
2 x^4 + 1 = y^2.
2
x
4
+
1
=
y
2
.
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