7178怎么算出来等于24(

7178怎么算出来等于24? -
（8/（1+7/7））！（8/2）！4！24
7, 3, 7, 8的24点答案：1: (7 + 3 - 7) × 8 2: ((7 + 3) - 7) × 8 3: (7 + (3 - 7)) × 8 4: 7 × 3 ÷ 7 × 8 5: (7 × 3) ÷ 7 × 8 6: (7 × 3 ÷ 7) × 8 7: ((7 × 3) ÷ 7) × 8 8: (7 × (3 ÷ 7)) ×希望你能满意。