Question

calcule A) (-7).(-8).(+3) B) (+7).(+2).(+3).(-1) C) (+8).(-6).(-5).(+3).(+2)

Answer 1

 a) (-7).(-8).(+3)
= 56 . (+3)
= 168

 b) (+7).(+2).(+3).(-1)
= 14 .(+3).(-1)
=  42 .(-1)
= -42

c) (+8).(-6).(-5).(+3).(+2)
= - 48.(-5).(+3).(+2)
= 240.(+3).(+2)
=720.(+2)
=1440

Answer 2

Resposta:

Explicação passo-a-passo:

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