Question

Calcule:
a) -1 + [-1 + (-1 + 1)]
b) -1 + (-2 + 3) + [-4 + (-5 + 6 - 7)]

Answer 1

Resposta:

-2

...........

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

-1+[-1+0]

-1+(-1)

-2

-10

...........

-1+(-2+3)+[-4+(-5+6-7)]

-1+(-1)+[-4+(-5+1)]

-1+(-1)+[-4+(-4)]

-2+(-8)

-10