Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1-6 - Cumulative Review - Page 548: 56



Work Step by Step

Combine like terms to simplify. $(3x^2+4x-12)-(x^2+9x-20)$ $=3x^2+4x-12-x^2-9x+20$ $=2x^2-5x+8$
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