Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 348: 22


$x^{2}$ + 9x

Work Step by Step

(-3$x^{2}$ + x) + (4$x^{2}$+ 8x) The like terms are -3$x^{2}$ and 4$x^{2}$ containing the same variable to the same power($x^{2}$), as well as x and 8x (both containing x) . We begin by grouping these pairs of like terms. ( -3$x^{2}$ + 4$x^{2}$)+(x + 8x) = $x^{2}$ + 9x
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