Question

-5-[(-5}ao quadrado-(-2-raiz quadrada de 9)×5]÷10

Answer 1

- 5 - [ ( -5}^2 - ( - 2 V 9 ) x 5 ] \ 10
- 5 [ ( 5} ^2 + ( + 2 V 9) x 5] \ 10 
- 5 [ 25 + 2 + 3 x 5] \ 10
- 5 [ 25 + 2 + 15] \ 10
- 5[ 25+ 17] \ 10
- 5[ 32]/10
32-5
27 /10
2,7