Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 10 - Radical Expressions and Equations - 10-2 Simplifying Radicals - Mixed Review: 88

Answer

$25-16b^2=(5+4b)(5-4b)$

Work Step by Step

Remember that the product of the sum and the difference of the same two terms is the difference of their squares. Since $\sqrt {25}=5$ and $\sqrt {16b2}=4b$ $25-16b^2=(5+4b)(5-4b)$
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