(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

What are the ways you can determine whether a polynomial is irreducible?

3. The attempt at a solution

Eisenstein's criterion is one but it can't be applied all the time. i.e. x^4-2x^2+9

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# Homework Help: Irreducible polynomial?

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