Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 10 - Section 10.3 - Finding Binomial Factors - Exercise: 18

Answer

$(r-5)(r-7)$

Work Step by Step

The first term in each binomial must be r, since $r^2$ has no coefficient. The operation in each binomial must be subtraction, since the trinomial has a positive and a negative term. $-5+(-7)=-12$ and $-5\times(-7)=35$, so the other two terms are -5 and -7.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.