Answer
Answer:
=$-5{x^2} + 5x + 1$
Work Step by Step
$(-9{x^2} + 6x + 2) + (4{x^2} - x -1)$
= $-9{x^2} + 4{x^2} + 6x -x + 2 -1$
= $-5{x^2} + 5x + 1$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Review - Page 406: 79
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