Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.6 - Special Products - Exercise Set: 13



Work Step by Step

Using the FOIL method, $(x-\frac{1}{3})(x+\frac{2}{3})=(x)(x)+(x)(\frac{2}{3})+(-\frac{1}{3})(x)+(-\frac{1}{3})(\frac{2}{3})=x^{2}+\frac{2}{3}x+(-\frac{1}{3}x)+(-\frac{2}{9})=x^{2}+\frac{2}{3}x-\frac{1}{3}x-\frac{2}{9}=x^{2}+(\frac{2}{3}-\frac{1}{3})x-\frac{2}{9}=x^{2}+\frac{1}{3}x-\frac{2}{9}$.
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