Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 10 - Section 10.1 - Adding and Subtracting Polynomials - Exercise Set: 53



Work Step by Step

When x=5: 2$x^{2}$+4x-20 =2$(5)^{2}$+4(5)-20 =2(25)+20-20 =50+20-20 =70-20 =50
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