Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Chapters R-4 - Cumulative Review Exercises: 31

Answer

$2x^2-5x+10$

Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (3x^2-8x+1)-(x^2-3x-9) ,$ simplifies to \begin{array}{l}\require{cancel} 3x^2-8x+1-x^2+3x+9 \\\\= (3x^2-x^2)+(-8x+3x)+(1+9) \\\\= 2x^2-5x+10 .\end{array}
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