Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Review - Page 406: 97



Work Step by Step

$(x^2+2x+4)(x^2+2x-4)$ $x^2(x^2+2x-4)+2x(x^2+2x-4)+4(x^2+2x-4)$ $(x^4+2x^3-4x^2)+(2x^3+4x^2-8x)+(4x^2+8x-16)$ $x^4+4x^3+4x^2-16$
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