Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 6 - Section 6.1 - The Greatest Common Factor and Factoring by Grouping - Exercise Set: 69

Answer

$(x+2)(x+4)$

Work Step by Step

Using factoring by grouping, the given expression, $ x^2+2x+4x+8 ,$ is equivalent to \begin{array}{l}\require{cancel} (x^2+2x)+(4x+8) \\\\= x(x+2)+4(x+2) \\\\= (x+2)(x+4) .\end{array}
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