根据24点游戏规则写出算式使-2，4，5，7的运算结果等于24

1: (4 - 2) × (5 + 7)

2: 4 ÷ 2 ×(5 + 7)

3: (4 ÷ 2) × (5 + 7)

4: 4 ÷ (2 ÷ (5 + 7))

5: (4 - 2) × (7 + 5)

6: 4 ÷ 2 ×(7 + 5)

7: (4 ÷ 2) × (7 + 5)

8: 4 ÷ (2 ÷ (7 + 5))

9: (4 × (5 + 7)) ÷ 2

10: 4 × (5 + 7) ÷ 2

11: 4 × ((5 + 7) ÷ 2)

12: (4 × (7 + 5)) ÷ 2

13: 4 × (7 + 5) ÷ 2

14: 4 × ((7 + 5) ÷ 2)

15: (5 + 7) ÷ 2 × 4

16: ((5 + 7) ÷ 2) × 4

17: (5 + 7) ÷ (2 ÷ 4)

18: (5 + 7) × (4 - 2)

19: (5 + 7) × 4 ÷ 2

20: ((5 + 7) × 4) ÷ 2

21: (5 + 7) × (4 ÷ 2)

22: (7 + 5) ÷ 2 × 4

23: ((7 + 5) ÷ 2) × 4

24: (7 + 5) ÷ (2 ÷ 4)

25: (7 + 5) × (4 - 2)

26: (7 + 5) × 4 ÷ 2

27: ((7 + 5) × 4) ÷ 2

28: (7 + 5) × (4 ÷ 2)