Question

[10+6.4+(15:3+21:7)^2]-5.10

Answer 1

[10 + 6.4 + (5 + 3)^2]-5.10
[10 + 24 + 64] - 50
98 - 50
48

Answer 2

[10+6.4+(15:3+21:7)²]-5.10
[10+24+(5+3)²] - 50
[34+(8)²] - 50
[34+64] - 50
[34+64] - 50
98 - 50 
48
Resposta: 48