College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter R - Review Exercises - Page 75: 53

Answer

$7q^3-9q^2-8q+9$

Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (3q^3-9q^2+6)+(4q^3-8q+3) ,$ evaluates to \begin{array}{l}\require{cancel} 3q^3-9q^2+6+4q^3-8q+3 \\\\= (3q^3+4q^3)-9q^2-8q+(6+3) \\\\= 7q^3-9q^2-8q+9 .\end{array}
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