Question

Realiza las siguientes operaciones. (●○○)
a) (−3) ⋅ 7 − 3 ⋅ (−2)
b) 8 + 2 ⋅ [−(−5) − 3 ⋅ (−2)]
c) (7 − (−2)) ⋅ [6 + (−2) ⋅ (−8 + 7)]
d) 15 : (−3) ⋅ [6 − (−2) ⋅ (−1)]
Ayuda por favor!!!!

Answer 1

a)-21+6= -15
b)8+2•(+5+6)=8+2•11=8+22=30
c)9•4•(-1)= -36
d)-5•(6-2)= -5•4= -20

Answer 2

a)-21+6= -15
b)8+2.(+5+6)=8+2.11=8+22=30
c)9.4.(-1)= -36
d)-5.(6-2)= -5.4= -20

Formula (-)(₊)= -