Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.4 - Multiplying Polynomials - 4.4 Exercises: 72

Answer

$0.05y^2+1.01y-0.84$

Work Step by Step

Using $(a+b)(c+d)=ac+ad+bc+bd$ or the FOIL Method, the product of the binomials in the given expression, $ (0.1y+2.1)(0.5y-0.4) ,$ is \begin{array}{l}\require{cancel} 0.1y(0.5y)+0.1y(-0.4)+2.1(0.5y)+2.1(-0.4) \\\\= 0.05y^2-0.04y+1.05y-0.84 \\\\= 0.05y^2+1.01y-0.84 .\end{array}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.