#### Answer

prime

#### Work Step by Step

In the trinomial x$^2$+5x-9, b=5 and c=-9.
There is no set of factors of c whose sum is equal to b.
Therefore the expression is prime.

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

prime

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