Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set: 8

Answer

4$x^{2}$ + 2x - 4

Work Step by Step

(7$x^{2}$ + 2x -9 ) + ( -3$x^{2}$ + 5) = ( 7$x^{2}$ -3$x^{2}$ )+ 2x + (-9 +5) = combine like terms 4$x^{2}$ + 2x - 4
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