Question

Resolva a expressão numérica a seguir:
√625 + {122 – 5.[23 ∶ (3 − 20).3]}

Answer 1

3 - 20 = -17. 23 ÷ (-17) × 3 = -23/17 × 3 = -69/17.

122 - 5 × (-69/17) = 122 - (-345/17) = 122 + 345/17 = 2074/17 + 345/17 = 2419/17.

Raiz de 625 + 2419/17 = 25 + 2419/17 = 425/17 + 2419/17 = 2844/17.