College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Section P.2 - Real Numbers - P.2 Exercises - Page 15: 7


(a) No (b) No

Work Step by Step

(a) No. $a-b=-b+a=-b--a=-(b-a)$ (b) No. Using the Distributive Property we get: $-2(a-5)=-2a+-2*-5=-2a+10$, which is not $-2a-10$
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