Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix A - Exercise Set: 24



Work Step by Step

$(2x^2+3x+12)-(5x-7)$ First we change the sign of each term of the second polynomial, and then we add the result to the first polynomial. $=2x^2+3x+12-5x+7$ Group like terms $=2x^2+3x-5x+7+12$ Combine like terms $=2x^2-2x+19$
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