Question

{[(2³ x 2² + 3 ) + 7 + ( 3 + 15+5)3] x2 - (19-7)+6}x 2 + 2² x 3​

Answer 1

Resposta:235,68

{[(2³×2²+3)÷7+(3+15÷5)×3]×2-(19-7)÷6}×2+2+2²×3 =  

{[(8.4+3):7+(3+5).3].2-(12):6}.2+2+4.3 =  

{[32+3:7+8.3].2-12:6}.2+2+4.3 =  

{[32+0,42+24].2-12:6}.2+2+4.3 =  

{56,42.2-2}.2+2+4.3 =  

{112,84-2}.2+2+4.3 =  

110,84.2+2+4.3 =  

221,68+2+12 = 235,68

Elimina:

1) - parênteses ( )

2) - colchetes [ ]

3) - chaves { }

Regras dos sinais:  

+ com + = +

- com - = +

- com + = -

+ com - = +

Bons estudos!