Question

a) (+3) · (+2)
b) (+8) · (–4)
c) (–8) · (+1)
d) (–4) · (–5)

Answer 1

Explicação passo-a-passo:

a) +3 .(+2)= + 6

b) +8.(-4)= - 32

c) (-8).(+1)= - 8

d) (-4).(-5)= +20