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: 96



Work Step by Step

Shaded area = Larger figure - smaller figure Larger figure $= (3x+5) \times (3x-5)$ $= 9x^2-25$ Smaller figure $= 2x \times 2x$ $=4x^2$ $(9x^2-25)-(4x^2)$ $=5x^2-25$
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