Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 9 - Quadratic Functions and Equations - 9-4 Factoring to Solve Quadratic Equations - Practice and Problem-Solving Exercises: 13

Answer

a=7/4 or a=−8/3

Work Step by Step

If a product is 0, one of the factors must be 0. Use the addition property of equality and the multiplication property of equality to solve for a. 4a−7=0 or 3a+8=0 4a−7+7=0+7 or 3a+8−8=0−8 4a=7 or 3a=−8 4a÷4=7÷4 or 3a÷3=−8÷3 a=7/4 or a=−8/3
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