Question

2. [10 - (3 expoente 2 - 4. 5) - raiz quadrada de 9] :18

Answer 1

2.[10-(3²-4.5)-√9]:18=

2.[10-(-11)-3]:18
2.[10+11-3]:18
2.18:18
36:18
2

Answer 2

Boa tarde Alissa 

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 = 2