Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set: 72

Answer

$3.7y^4 - 0.7y^3 + 2.2y - 4$

Work Step by Step

$(7.9y^4 - 6.8y^3 + 3.3y)+(6.1y^3 - 5)-(4.2y^4 + 1.1y - 1)$ $=7.9y^4 - 6.8y^3 + 3.3y+6.1y^3 - 5-4.2y^4 - 1.1y + 1$ $=3.7y^4 - 0.7y^3 + 2.2y - 4$
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.