Answer
$81y^4-450y^2+625$
Work Step by Step
Use the formula $(a+b)(a-b)=a^2-b^2$, we have
$(3y-5)(3y+5)(9y^2-25)=(9y^2-25)(9y^2-25)=(9y^2-25)^2=81y^4-450y^2+625$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.3 Polynomials - R.3 Exercises - Page 33: 66
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
