Answer
Appendix A - Practice : 13 (Answer)
$(x + 4)(x - 4)$
$= x^{2} – 16$
Work Step by Step
Appendix A - Practice : 13 (Solution)
$(x + 4)(x - 4)$
$= x^{2} – 4^{2}$ (Product of sum and difference of two terms)
$= x^{2} – 16$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Appendix A - Practice - Page 973: 13
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