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: 11

Answer

$r^2-24r+144$

Work Step by Step

RECALL: $(a-b)^2a^2-2ab+b^2$ Use the formula above to have: $(r-12)^2 \\=r^2 - 2(r)(12) + 12^2 \\=r^2-24r+144$
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