Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises: 56

Answer

$x-y$

Work Step by Step

Use the rule $(A+B)(A-B)=A^{2}-B^{2}$.
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