Question

1°) Resolva as expressões:
a) 2-{-11+[17-(-12+10)-3]}

b)-10+{-5+[-7(-2+7)+4]}​

Answer 1

Oie, Td Bom?!

a)

= 2 - {- 11 + [17 - (- 12 + 10) - 3]}

= 2 - {- 11 + [17 - (- 2) - 3]}

= 2 - {- 11 + [17 + 2 - 3]}

= 2 - {- 11 + 16}

= 2 - 5

= - 3

b)

= - 10 + {- 5 + [- 7 . (- 2 + 7) + 4]}

= - 10 + {- 5 + [- 7 . 5 + 4]}

= - 10 + {- 5 + [- 35 + 4]}

= - 10 + {- 5 + [- 31]}

= - 10 + {- 5 - 31}

= - 10 + {- 36}

= - 10 - 36

= - 46

Att. Makaveli1996