Question

-[(-3)×(+27)÷(-9)+(225)÷(15)]+(-729)÷(9) <br /><br />-{-49÷(-7)×(-21)-[-(-256÷(-8)-(64+32)÷8]-28]<br /><br />​ALGUÉM, POR FAVOR!!É URGENTE.​

Answer 1

Olá bom dia!

Resposta:

$\boxed{\boxed{\boxed{\color{red}{\textsf{-105}}}}}$

$\boxed{\boxed{\boxed{\color{red}{\textsf{155}}}}}$

Explicação passo-a-passo:

$\textsf{-[(-3).(+27):(-9)+(225):(15)]+(-729):(9)}$

$\textsf{-[ \dfrac{-81}{-9} + \dfrac{225}{15}] - \dfrac{729}{9}}$

$\textsf{-[(-3).(-3) + 17] - 81}$

$\textsf{-[9 + 15] - 81}$

$\textsf{- 9 + 17- 81}$

$\textsf{-24 - 81}$

$\boxed{\color{red}{\textsf{-105}}}$

_________________________

$\textsf{-[-49:(-7).(-21)-[-(-256:(-8)-(64+32):8)]-28]}$

$\textsf{-[7. (-21) - [-(32-12)]-28]}$

$\textsf{-[-147 -[-(20)]-28]}$

$\textsf{-[-147+20-28]}$

$\textsf{-[-127-28]}$

$\textsf{-[-155]}$

$\boxed{\color{red}{\textsf{155}}}$

Answer 2

-[(-3) . (+27) : (-9) + (225) : (15)] + (-729) : (9) =

- [(-3) . (-3) + 15] + (-81) =

- [ 9 + 15] - 81 =

- 24 - 81 =

- 105

================================================

- {- 49 : (-7) . (-21) - [- (-256 : (-8) - (64+32) : 8] - 28} =

- {7 . (-21) - [- (32 - (96) : 8]-28} =

- [ - 147 - [- (32- 12)] - 28 }=

- { - 147 - [- 20] - 28 } =

- {- 147 + 20 - 28} =

- {- 175 + 20}=

- {- 155} =

155