Another Sporadic Problem-of-the-Week

mmm4444bot

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Oct 6, 2005
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This one looks like it might be fun, if you're looking for something to do. (I wish that I were.)

K(z) = z^4 + L z^3 + M z^2 + N z - N

Two different integers are roots of both K and K '.

If L, M, and N are all not zero, then what can they be?

 
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