Find all a E Z such that f(x) =

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter5: Orthogonality
Section5.3: The Gram-schmidt Process And The Qr Factorization
Problem 20EQ
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Find all a € Z such that f(x):
x3+ax+2 € Z[x] is irreducible and
(a) has three real roots and its Galois
group over Q is isomorphic to S3.
(b)has three real roots and its Galois
group over Q is isomorphic to A3.
Transcribed Image Text:= Find all a € Z such that f(x): x3+ax+2 € Z[x] is irreducible and (a) has three real roots and its Galois group over Q is isomorphic to S3. (b)has three real roots and its Galois group over Q is isomorphic to A3.
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