茜拉事件始末:怎样将6、2、9、2拼成24点

1: (6 ÷ 2 + 9) × 2
2: ((6 ÷ 2) + 9) × 2
3: 2 × (6 ÷ 2 + 9)
4: 2 × ((6 ÷ 2) + 9)
5: 2 × (9 + 6 ÷ 2)
6: 2 × (9 + (6 ÷ 2))
7: (2 × 9 - 6) × 2
8: ((2 × 9) - 6) × 2
9: 2 × (9 × 2 - 6)
10: 2 × ((9 × 2) - 6)
11: 2 × (2 × 9 - 6)
12: 2 × ((2 × 9) - 6)
13: (9 + 6 ÷ 2) × 2
14: (9 + (6 ÷ 2)) × 2
15: (9 × 2 - 6) × 2
16: ((9 × 2) - 6) × 2

使用加减乘除、乘方、开方，共有4种算式〖^是乘方，^^是开方〗：

1、2*(9+6/2)＝24
2、2*(2*9-6)＝24
3、(9*2^6)^^2＝24
4、(2+6)*9^^2＝24

1: (6 ÷ 2 + 9) × 2
2: ((6 ÷ 2) + 9) × 2
3: 2 × (6 ÷ 2 + 9)
4: 2 × ((6 ÷ 2) + 9)
5: 2 × (9 + 6 ÷ 2)
6: 2 × (9 + (6 ÷ 2))
7: (2 × 9 - 6) × 2
8: ((2 × 9) - 6) × 2
9: 2 × (9 × 2 - 6)
10: 2 × ((9 × 2) - 6)
11: 2 × (2 × 9 - 6)
12: 2 × ((2 × 9) - 6)
13: (9 + 6 ÷ 2) × 2
14: (9 + (6 ÷ 2)) × 2
15: (9 × 2 - 6) × 2
16: ((9 × 2) - 6) × 2
17:2*(9+6/2)＝24
18:2*(2*9-6)＝24
19:(9*2^6)^^2＝24
20:(2+6)*9^^2＝24

6,2,9,2由此4个数字算出24
1:(9*2-6)*2
2:(6/2+9)*2

（9开方）X2X（6-2）=24

96/2/2