Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.4 - Polynomials - Concept and Vocabulary Check: 10

Answer

$3x^2$; $5x$; $21x$; $35$

Work Step by Step

When using the FOIL method to find the product of $(x+7)(3x+5)$, the product of the first terms is $x(3x) = 3x^2$; outside terms is $x(5)=5x$; inside terms is $7(3x) = 21x$; the last terms is $7(5)=35$.
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