Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 11 Data Analysis and Statistics - 11.1 Find Measures of Central Tendency and Dispersion - 11.1 Exercises - Problem Solving - Page 749: 31b


See below.

Work Step by Step

$(a-b)^2\geq0\\a^2+b^2-2ab\geq0\\a^2+b^2+2ab\geq4ab\\(a+b)^2\geq4ab$ Thus we proved what we had to.
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.