Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 9 - Roots and Radicals - Chapters 1-9 Cumulative Review Problem Set - Page 432: 37



Work Step by Step

We will use the rules for factoring trinomials to factor this quadratic equation. Therefore, we obtain: $21x^{2}+22x-8$ =$21x^{2}-6x+28x-8$ =$3x(7x-2)+4(7x-2)$ =$(7x-2)(3x+4)$
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