Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 4 - Quadratic Functions - 4.5 Solving Equations by Factoring - 4.5 Exercises - Page 358: 2


$\color{blue}{\left\{4, 8\right\}}$

Work Step by Step

RECALL: Zero-Factor Property: If $ab = 0$, then either $a=0$ or $b=0$ or both are $0$. Use the property above to obtain: \begin{array}{ccc} &x-8=0 &\text{or} &x-4=0 \end{array} Solve each equation to obtain: $x=8$ or $x=4$ Thus, the solution set is $\color{blue}{\left\{4, 8\right\}}$.
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