Question

Conta (-1)3-(-1)5×(-1)4+(-1)7 e y (-2)4:23-42:(-2)2 camo calcular essa conta

Answer 1

x:  [(-1)³-(-1)⁵·(-1)⁴] +(-1)⁷

[(-1) - (-1) .(+1)] + (-1)

[-1 - (-1)] - 1

[- 1+ 1]- 1

-1 + 1 - 1

- 1 - 1 + 1

- 2 + 1

- 1

y:  (-2)⁴÷2³-4²÷(-2)₂

(+16) ÷ 8 - 16 ÷ (+4)

2 - 4

- 2

Valor de x.y:

x.y

(-1).(-2)

+ 2