Answer
Prime.
Work Step by Step
For trinomials $x^{2}+bx+c$,
we search for two factors of $c=16$ whose sum is $b=4$
We find that there aren't any such pairs, so the trinomial is prime.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A30: 87
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