Answer
$A^2$ - $B^2$
Work Step by Step
Use the standard FOIL method to multiply the two terms then simplify:
(A + B)(A - B)
= $A^2$ - AB + BA - $B^2$
= $A^2$ - $B^2$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises - Page 33: 5
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