Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 10 - Quadratic Equations - 10.4 - Solving Quadratic Equations - Which Method? - Problem Set 10.4 - Page 458: 47


The answer is below.

Work Step by Step

I would factor, for factoring is generally the easiest method if the quadratic equation is factorable. This quadratic equation is factorable as it factors to $(x+12)(x+18)$, so factoring is a good method to use.
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