Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Section 5.4 - Factoring Trinomials - Exercise Set - Page 361: 46



Work Step by Step

$2x^{2}+9x+7=$ ... ... Searching for two factors of $ac=+14$ whose sum is $b=+9,$ we find$\qquad+7$ and $+2.$ Rewrite the middle term and factor in pairs: =$2x^{2}+2x+7x+7=$ $=2x(x+1)+7(x+1)$ = $(x+1)(2x+7)$
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