anonymous
  • anonymous
Hi, could you please tell me how to get the real rational zeros of the function; f (x) = x3 + x + 1 I'm having trouble with it; P/Q gave me +/- 1 but I couldn't go any further. Thank You.
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
MJMATH, this function has no rational roots.
anonymous
  • anonymous
The rational roots theorem gives you the possibilities for rational roots. If none of these check out, the polynomial does not have rational roots.
anonymous
  • anonymous
Thank You very much. I suspected that, and I'm now also a fan (ticked the icon). Best of Luck to you.

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anonymous
  • anonymous
haha, thank you :D

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