Question

Me digam os resultados pf :

A 13 – (–8) · (–4)

B –13 – (–8) · (+4)

C 13 + (–8) · (–4)

D –13 – (–8) · (–4)

Answer 1

A ) 13 -(+32)
13-32
-19

B) -13-(-8).(+4)
-13-(-32)
-13+32
+19

C) 13+(-8).(-4)
13+(+32)
13+32= 45

D) -13-(-8).(-4)
-13-32
-45

Answer 2

Primeiro resolva os parênteses, e o jogo de sinal.
A-
13-(-8).(-4)=
13-(+32)=
13-32=
-19

B-
-13-(-8).(+4)=
-13-(-32)=
-13+32=
19

C-
13+(-8).(-4)=
13+(+32)
13+32=
45

D-
-13-(-8).(-4)=
-13-(+32)=
-13-32=
-45