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: 20

Answer

38$x^{2}$ + 17x - 24

Work Step by Step

(11$x^{2}$ + 7x - 4) + (27$x^{2}$+10x-20) The like terms are 11$x^{2}$ and 27$x^{2}$ containing the same variable to the same power($x^{2}$), as well as 7x and 10x (both containing x), and the constant terms -4 and -20. We begin by grouping these pairs of like terms. (11$x^{2}$ + 27$x^{2}$) + (7x + 10x) +(-4 - 20) = 38$x^{2}$ + 17x - 24
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