Answer
$4x^2-\frac{25}{81}$
Work Step by Step
$(2x+\frac{5}{9})(2x-\frac{5}{9})$
Difference of squares
$(2x)^2-(\frac{5}{9})^2$
$=4x^2-\frac{25}{81}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Integrated Review - Exponents and Operations on Polynomials - Page 391: 37
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