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 - Page 271: 57

Answer

$6(x-4)(x-7)$

Work Step by Step

To factor by trial and error, first check if you can pull out the greatest common factor of the terms. Then determine the two numbers that, when multiplied, equal the third term, and, when added, equal the coefficient of the middle term. $6x^2-66x+168$ $6(x^2-11x+28)$ $6(x-4)(x-7)$
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