Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 7 - Polynomial Equations and Factoring - 7.1 - Adding and Subtracting Polynomials - Exercises - Page 362: 36

Answer

$4r^3-r^2-8r-10$.

Work Step by Step

The given polynomial is $=(-r-10)-(-4r^3+r^2+7r)$ Clear the parentheses. $=-r-10+4r^3-r^2-7r$ Group like terms. $=4r^3-r^2-7r-r-10$ Combine like terms. $=4r^3-r^2-8r-10$.
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