W10 Discussion

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Root of $f_r(x) \iff \text{elements } a\in F, f(a)\in \Z_p$

Now there are p(p-1) elements → at most p(p-1) many elements have the property $f(a)\in \Z_p$

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There are only 4 options so check each one to see if it is irreducible.

Covered last lecture

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