Elementary Algebra

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

Chapter 6 - Factoring, Solving Equations, and Problem Solving - 6.1 - Factoring by Using the Distributive Property - Problem Set 6.1: 81

Answer

$x = -5, 4$

Work Step by Step

Expand and simplify to solve for $x$ $x(x+5) -4(x+5) = 0$ $x^{2} + 5x - 4x - 20 = 0$ $x^{2}+x-20$ $(x-4)(x+5) = 0$ $x = 4, -5$
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