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: 39

Answer

$100-x^2$

Work Step by Step

RECALL: $(a-b)(a+b)=a^2-b^2$ Use the formula above to have: $(10-x)(10+x) \\=10^2-x^2 \\=100-x^2$
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