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 4 - Polynomials - 4.4 Addition and Subtraction of Polynomials - 4.4 Exercise Set - Page 259: 15



Work Step by Step

By combining like terms, the given expression, $ (7t^2-3t-6)+(2t^2+4t+9) $, simplifies to \begin{array}{l} (7t^2+2t^2)+(-3t+4t)+(-6+9) \\\\= 9t^2+t+3 .\end{array}
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