College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4 - Page 61: 67



Work Step by Step

$$(x+5y)(7x+3y)$$ To multiply two binomials (expressions with two terms) multiply each term in the first binomial by each term in the second binomial: $$=(x\times 7x)+(x\times 3y)+(5y\times 7x)+(5y\times 3y)$$ $$=7x^2+3xy+35xy+15y^2$$ Combine like terms: $$=7x^2+38xy+15y^2$$
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.