Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 5 Polynomials and Polynomial Functions - 5.3 Add, Subtract, and Multiply Polynomials - 5.3 Exercises - Skill Practice - Page 350: 52


The proof is below.

Work Step by Step

Multiplying the given expression out as the problem asks, we find: $$\left(a-b\right)\left(a+b\right) \\ a^2-ab+ab-b^2 \\ a^2-b^2$$
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