Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 3 - Exponents, Polynomials and Functions - 3.4 Factoring Polynomials - 3.4 Exercises: 19

Answer

$(r+4)(7r+2)$

Work Step by Step

Separate all the terms into two sets of parentheses. Then find the greatest common factor of each set to factor. $7r^2+28r+2r+8$ $=7r(r+4)+2(r+4)$ $=(r+4)(7r+2)$
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