Question

2. [(6+7.√9):3²+(14-5.√4)]

Answer 1

2 × [(6 + 7 × √9) ÷ 3² + (14 - 5 × √4)]
2 × [(6 + 7 × 3) ÷ 9 + (14 - 5 × 2)]
2 × [(6 + 21) ÷ 9 + (14 - 10)]
2 × [27 ÷ 9 + 4]
2 × [3 + 4]
2 × 7
14

Espero ter ajudado. Valeu! 

Answer 2

Olá

2.[(6+7.√9): 3²+ (14-5.√4)]

2.[(6+7.3): 9+ (14-5.2)]

2.[(6+21): 9+ (14-10)]

2.[27:9+4]

2.[3+4]

2.7

14

ATT CHARLES