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 - Page 244: 42



Work Step by Step

$(4a+7)(3a^2-4a+2)$ $=4a(3a^2-4a+2)+7(3a^2-4a+2)$ $=12a^3-16a^2+8a+21a^2-28a+14$ $=12a^3+5a^2-20a+14$
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