Answer
(a) $ 2x^2-3x+3$.
(b) $ 6x^3-4x^2+3x-2$.
(c) $ 4xh+2h^2$.
Work Step by Step
(a) $f-g=(2x^2+1)-(3x-2)=2x^2-3x+3$.
(b) $f\cdot g=(2x^2+1)(3x-2)=6x^3-4x^2+3x-2$.
(c) $f(x+h)-f(x)=2(x+h)^2+1-(2x^2+1)=4xh+2h^2$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 1 - Functions and Their Graphs - Chapter Test - Page 116: 9
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