Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 2 - Section 2.3 - The Algebra of Functions - Exercise Set - Page 133: 35


$(f-g)(x)=x^{2}+5x-2$ $(f-g)(5)=48$

Work Step by Step

$(f-g)(x)=f(x)-g(x)$ $=x^{2}+4x-2+x$ $=x^{2}+5x-2$ Plugin $x=5$ into $x^{2}+5x-2.$ $(f-g)(5)=5^{2}+5\times5-2=25+25-2=48$
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