Answer
$x^2-8x+16$
Work Step by Step
Expand the square and multiply the two terms together using polynomial multiplication rules and FOIL (First, Outside, Inner, Last).
$(x-4)^2=(x-4)(x-4)=x^2-4x-4x+16=x^2-8x+16$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.3 - Simplifying Radical Expressions - Exercise Set - Page 704: 105
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