Question

2) Determine o produto:
a) (-2). (+3). ( +4) =
b) (-6).(+5).(-2) =
c) (+1).(+1).(+1).(-1)=
d) (-2).(-4).(+6).(+5) =
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Answer 1

a) - 24

b) + 60

c) -1

d) + 240