Answer
$x^{4}-64$
Work Step by Step
$(x^{2}+8)(x^{2}-8)$
To evaluate this product, use the following formula:
$(a+b)(a-b)=a^{2}-b^{2}$
Here, $a=x^{2}$ and $b=8$
$(x^{2}+8)(x^{2}-8)=(x^{2})^{2}-(8)^{2}=x^{4}-64$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Special Products - Exercise Set - Page 388: 74
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