Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.3 - Operations with Radicals - Exercise Set - Page 592: 72



Work Step by Step

$(5\sqrt{3}+6)(5\sqrt{3}-6)$ Use the FOIL method to multiply the binomial. Multiply the First terms, the Outside terms, the Inside terms, and the Last terms. $(5\sqrt{3}\times5\sqrt{3})+(-6\times5\sqrt3)+(6\times5\sqrt3)+(6\times(-6))$ Simplify. $75-30\sqrt{3}+30\sqrt{3}-36$ Combine like terms/like radicals. $-39$
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.