Question

Efetue:
2 . [10 - (3² - 4 . 5) - √9] ÷ 18 =

Answer 1

Efetue:
2 . [10 - (3² - 4 . 5) - √9] ÷ 18 =
2 . [10 - (9 - 20) - 3] ÷ 18 =
2 . [10 - (- 11) - 3] ÷ 18 =
2 . [10 + 11 - 3] ÷ 18 =
2 . 18 ÷ 18 =
36 ÷ 18 =
2

Answer 2

2 . [10 - (9 - 20) - 3] / 18
2 . [10 + 11 - 3] / 18
2 . 18 / 18
36 / 18 = 2 (ou 2.1=2)