Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 289: 64



Work Step by Step

Using $(a+b)(c+d)=ac+ad+bc+bd$ or the FOIL Method, the expression, $ (4x^3-5)(5x^2+6) $, is equivalent to \begin{array}{l} 4x^3(5x^2)+4x^3(6)-5(5x^2)-5(6) \\\\= 20x^{3+2}+24x^3-25x^2-30 \\\\= 20x^5+24x^3-25x^2-30 .\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.