Answer
$P(x)=70x-10x^3$
Work Step by Step
The profit is $P(x)\\=R(x)-30x\\=100x-10x^3-30x\\=70x-10x^3$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 5 Polynomials and Polynomial Functions - Mixed Review of Problem Solving - Lessons 5.1-5.5 - Page 369: 6b
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