Question

Calcule o valor das expressões:

A)9-[3+5-(8-2-5)]
B)8×(2+3)-[6×4+(3+2×6)]

Answer 1

Resposta:

A) 9-[3+5-(8-2-5)]

9-[3+5-1]

9-7

2

B)8x(2+3)-[6x4+(3+2x6)]

8x5-[6x4+15]

8x5-39

40-39

1

Answer 2

Boa noite,

Resposta letra a): 2

Resposta letra b):1

Explicação passo-a-passo:

a) 9-[3+5-(8-2-5)]=

9-[3+5-(6-5)]=

9-[3+5-1]=

9-[8-1]=

9-7=2

b)8×(2+3)-[6×4+(3+2×6)]=

8×(2+3)-[6×4+(3+12)]=

8×5-[6×4+15]=

8×5-[24+15]=

8×5-39=

40-39= 1