Question

Mim ajudem namoral Man
1) Resolva as expressões:

a) {7+[5+(3+1•2)]}

b) {9+[(8+4•9)-7•3-4•4) •3]}​

Answer 1

Resposta:

a){7+[5+(3+1•2)]}

{7+[5+(3+2)]}

{7+[5+(5)]}

{7+[5+5]}

{7+[10]}

{7+10}=17

b)

{9+[(8+36)-7•3-4•4) •3]}

{9+[(44)-7•3-4•4) •3]}

{9+[(44-7•3-4•4) •3]}

{9+[(44-21-16) •3]}

{9+[7•3]}

{9+[21]}

{9+21}=30