Answer
$8$
Work Step by Step
Using operation rules on real numbers, then,
\begin{array}{l}
(-8)(-1)
\\=
8
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 9 - Cumulative Review - Page 600: 1a
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