Elementary Technical Mathematics

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

Chapter 10 - Section 10.2 - Finding the Product of Two Binomials Mentally - Exercise: 30

Answer

$120x^2-54x-21$

Work Step by Step

FOIL means you combine the first term from each expression, the inside terms, the outside terms and the last terms. $120x^2+30x-84x-21=120x^2-54x-21$
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