Share
Explore BrainMass

Fields

Let F be a field and le p(x) E F[x]. If p(x) is not irreducible, then F[x]/{p(x)} is:

a) always a field
b) sometimes a field
c) never a field.

Give reasons for your assertion.

Please see attached.

Attachments

Solution Preview

The answer is (c), never a field.

Proof:
Since p(x) is not irreducible, then it is reducible. We can find q(x) and r(x) with ...

$2.19