Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Cumulative Review: 35

Answer

(x + 4)(x + 3)

Work Step by Step

$x^{2} + 7x + 12$ To factor this, we need two factors of 12 such that their sum is 7. Thus the factors are 4 and 3. $x^{2} + 7x + 12$ = $x^{2} + 3x + 4x + 12$ =x(x + 3) + 4(x + 3) = (x + 4)(x + 3) .
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