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.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.