Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 10 - Section 10.4 - Special Products - Exercise: 21

Answer

$s^2t^2-14st+49$

Work Step by Step

RECALL: $(a-b)^2=a^2-2ab+b^2$ Use the formula above to have: $(st-7)^2 \\=(st)^2-2(st)(7) + 7^2 \\=s^2t^2-14st+49$
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.