#### Answer

24

#### Work Step by Step

Multiply two numbers at a time from left to right. Two numbers with opposite signs have a negative product while two numbers with the same sign have a positive product.
$-2(-3)(-4)(-1)$
$(6)(-4)(-1)$
$(-24)(-1)=24$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

24

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