Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter R - Elementary Algebra Review - R.4 Polynomials - R.4 Exercise Set - Page 961: 47



Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (8y^2-2y-3)-(9y^2-7y-1) ,$ simplifies to \begin{array}{l}\require{cancel} 8y^2-2y-3-9y^2+7y+1 \\\\= (8y^2-9y^2)+(-2y+7y)+(-3+1) \\\\= -y^2+5y-2 .\end{array}
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