Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - P.4 - Factoring Polynomials - Exercises - Page 40: 89



Work Step by Step

Recall: Conjugate pairs can be formed by changing the sign between the two terms, such as x+y to x-y. The difference of two perfect squares can be factored as the product of conjugate pairs. The difference of two perfect squares can be written as $x^{2}-y^{2}$ $$x^{2}-y^{2}=(x+y)(x-y)$$ Therefore, it is true.
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