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Math Help - reducible and irreducible

  1. #1
    Junior Member
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    reducible and irreducible

    Prove that there is no irreducible polynomial of degree 2 in C[x].
    Last edited by Deepu; March 21st 2010 at 09:05 PM.
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  2. #2
    Senior Member Tinyboss's Avatar
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    If z is complex, write z=re^{i\theta}. Then \sqrt{z}=\sqrt{r}e^{i\theta/2} is also in C.
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