Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 3 - Exponents, Polynomials and Functions - 3.5 Special Factoring Techniques - 3.5 Exercises: 11

Answer

$(3k+4)(3k-4)$

Work Step by Step

Use the formula $a^2-b^2=(a+b)(a-b)$ to factor. $9k^2-16$ $=(3k+4)(3k-4)$
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