Question

Valor das expressões
) (−3).(−4).(+6).(+2) =
c) (−20):(4) + (10).(−2) =
d) 8 . { 5 − [ −3 + 4 .(−1 + 1) + 2 ] + 1 } + 8 =

Answer 1

Resposta:

(−3).(−4).(+6).(+2) =

-3*-4*+6*+2=

+12*+12=

R; 144

(−20):(4) + (10).(−2) =

-20/4 + 10*(-2)=

-5 + (-20)=

R; -25

Answer 2

Explicação passo-a-passo:

b) (-3).(-4).(+6).(+2)=

12.12=

24

c) (-20):(4)+(10).(-2)=

-5+(-20)=

-25

d) 8{5-[-3+4(-1+1)+2]+1}+8=

8{5-[-3+4.0+2]+1}+8=

8{5-[-3+0+2]+1}8=

8{5-1+1}8=

8.5+8=

40+8=

48