Question

preciso da resposta por favor !

Answer 1

Resposta:

- 72,818...

Explicação passo-a-passo:

7/2 x 4/14 – [ 84 - - (8/5 + 3/2)2  + 4/7]

28 / 28 – [84 – (16 + 15/10)2 + 4/7]

1 – [84 – (31/10)2 + 4/7]

1 – [84 – 961/100 + 4/7]

1 – [58800 – 6727 + 400 / 700]

1 – [52473 / 700]

1 – 52473 / 700

700 – 52473 / 700

-51773 /700

- 73,961...