# Factoring a complicated 20-term polynomial

I'm trying to factorise a 20-term polynomial of the 4th degree with four variables. Ideally, I'd like to do it by hand, but I get the idea that this is pretty improbable. Can anyone point me to some helpful resources on this subject?

Thanks

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Over what field? –  Qiaochu Yuan Feb 5 '11 at 19:20
In mathematics, one should avoid saying complex if one just means complicated. –  Rahul Feb 5 '11 at 19:46
Rahul, noted. Qiaochu, as in real, complex, rational, etc? –  hrickards Feb 5 '11 at 20:07