Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 3 - Exponents, Polynomials and Functions - 3.2 Combining Functions - 3.2 Exercises: 47

Answer

$21xy^2+43xy-42x$

Work Step by Step

Use the distributive property to multiply the outside term by the terms inside the parentheses. Then combine like terms. $7x(3y^2+5y-6)+8xy$ $=21xy^2+35xy-42x+8xy$ $=21xy^2+43xy-42x$
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