Algebra 1

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

Chapter 8 - Polynomials and Factoring - 8-4 Multiplying Special Cases - Standardized Test Prep: 59

Answer

(2x+5)(2x-5)=$4x^{2}$-25

Work Step by Step

To simplify the product (2x+5)(2x-5) we'll apply the rule that states that (a+b)(a-b)=$a^{2}$-$b^{2}$ and set a=2x and b=5 Therefore, (2x+5)(2x-5)=$(2x)^{2}$-$5^{2}$ =$4x^{2}$-25
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