Answer
$7(2h+3)(2h-3)$
Work Step by Step
First, pull out the greatest common factor. Then use the formula $a^2-b^2=(a+b)(a-b)$ to factor.
$28h^2-63$
$=7(4h^2-9)$
$=7(2h+3)(2h-3)$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
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 - Page 279: 22
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
