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: 20



Work Step by Step

By combining like terms, the given expression, $ (7+4t-5t^2+6t^3)+(2+t+6t^2-4t^3) $, simplifies to \begin{array}{l} (6t^3-4t^3)+(-5t^2+6t^2)+(4t+t)+(7+2) \\\\= 2t^3+t^2+5t+9 .\end{array}
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