Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Review: 47

Answer

8$x^{2}$ + 2b - 22

Work Step by Step

(3$x^{2}$ - 4b+ 28) + (9$x^{2}$ - 30) - (4$x^{2}$ - 6b + 20) = 3$x^{2}$ - 4b+ 28 + 9$x^{2}$ - 30 - 4$x^{2}$ + 6b - 20 = 8$x^{2}$ + 2b - 22
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