Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.6 - Special Products - Exercise Set: 16

Answer

$10a^{2}-2.7a+1.8$

Work Step by Step

Using the FOIL method, $(.3-2a)(.6-5a)=(.3)(.6)+(.3)(-5a)+(-2a)(.6)+(-2a)(-5a)=1.8+(-1.5a)+(-1.2a)+10a^{2}=1.8-1.5a-1.2a+10a^{2}=1.8-2.7a+10a^{2}=10a^{2}-2.7a+1.8$.
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