Answer
answer is correct -3-x
Work Step by Step
answer is correct -3-x becouse
$\frac{9-x^{2}}{x-3}$=
$\frac{3^{2}-x^{2}}{x-3}$=
$\frac{(3-x)(3+x)}{-(3-x)}$=
$\frac{(3+x)}{(-1)}$=-(3+x)=-3-x
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 7 - Section 7.1 - Simplifying Rational Expressions - Exercise Set - Page 491: 65
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