Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.6 - Special Products - Exercise Set: 45

Answer

$x^{4}-25$

Work Step by Step

$(x^{2}+5)(x^{2}-5)$ Perform this product applying the following formula: $(a+b)(a-b)=a^{2}-b^{2}$ Here, $a=x^{2}$ and $b=5$ $(x^{2}+5)(x^{2}-5)=(x^{2})^{2}-(5)^{2}=x^{4}-25$
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