Question

alguem me ajuda prfv
2 x { 4 3 - [5 x 7 0 + 5 x (9 2 - 81)]} =

Answer 1

2 x { 4 3 - [5 x 7 0 + 5 x (9 2 - 81)]}

2 × { 4 3 - [5 × 70 + 5 × 1 1 ] }

2 × { 4 3 - 4 0 5 }

2 × 3 6 2 = 7 2 4