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 - Page 347: 14

Answer

$x^2+x-90$

Work Step by Step

FOIL means you combine the first term from each expression, the inside terms, the outside terms and the last terms. $x^2+10x-9x-90=x^2+x-90$
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