#### Answer

$(A-B)(A+B)$

#### Work Step by Step

RECALL:
A difference of two squares can be factored using the formula:
$a^2-b^2=(a-b)(a+b)$
Thus, the missing expression in the given statement is:
$(A-B)(A+B)$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$(A-B)(A+B)$

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