I am looking for some help using Wilson's Theorem for the following problem 29!(mod 31).

And then I am quite stumped with proving that the following has no solutions: x^18 + x^9 + 1 = 0 (mod 19).

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- Dec 4th 2009, 07:45 AM #1

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- Dec 4th 2009, 08:11 AM #2

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- Dec 7th 2009, 03:54 PM #3

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- Dec 8th 2009, 03:55 PM #4

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