Question : Solve the following equation. 123 × (162 − 142 − 40) ÷ 2 − 94 = ________.
Option 1: 17280
Option 2: 6561
Option 3: 10719
Option 4: 9865
Correct Answer: 10719
Solution : 12 3 × (16 2 − 14 2 − 40) ÷ 2 − 9 4 = 1728 × (256 − 196 − 40) ÷ 2 − 6561 = 1728 × 20 ÷ 2 − 6561 = 1728 × 10 − 6561 = 17280 − 6561 = 10719 Hence, the correct answer is 10719.
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