Intermediate Algebra: Connecting Concepts through Application

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

Chapter 3 - Exponents, Polynomials and Functions - 3.2 Combining Functions - 3.2 Exercises: 31

Answer

$8x^{2}+4x-20$

Work Step by Step

$(5x^{2}-6x-12)-(-3x^{2}-10x+8)$ $=5x^{2}-6x-12+3x^{2}+10x-8$ $=5x^{2}+3x^{2}-6x+10x-12-8$ $=8x^{2}+4x-20$
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