Question

c) (−1 − 4) ∙ (−10 + 16) − [(−8) ∶ (+2) − 7 − (−1) ∶ (+5)] =
d) (−50) ∶ (−5 − 5) − [20 + (−42) ∶ (+7) − (−35) ∶ (−1 − √16)] =​

Answer 1

Resposta:

c) (−1 − 4) ∙ (−10 + 16) − [(−8) ∶ (+2) − 7 − (−1) ∶ (+5)] =

(- 5) . (+ 6) - [- 4 - 7 - (-0,2)] =

- 30 - [- 11 + 0,2] =

- 30 + 11 - 0,2 =

- 30,2 + 11 =

- 19,2

d) (−50) ∶ (−5 − 5) − [20 + (−42) ∶ (+7) − (−35) ∶ (−1 − √16)] =​

(- 50) : (- 10) - [20 + (- 6) - ( - 35) : (- 1 - 4)] =

+ 5 - [20 + (- 6 - (35) : (- 5)] =

+ 5 - [20 + (- 6 - (- 7)] =

+ 5 - [20 + (- 6 + 7)] =

+ 5 - [ 20 + (+ 1)] =

+ 5 - [20 + 1] =

+ 5 - [+ 21] =

+ 5 - 21 =

- 15

Espero ter ajudado.

Explicação passo-a-passo: