怎么(5,6,8,9)用加减乘除算出等于24

1: (5 + 8 - 9) × 6
2: ((5 + 8) - 9) × 6
3: (5 + (8 - 9)) × 6
4: (5 - 9 + 8) × 6
5: ((5 - 9) + 8) × 6
6: (5 - (9 - 8)) × 6
7: 6 × (5 + 8 - 9)
8: 6 × ((5 + 8) - 9)
9: 6 × (5 + (8 - 9))
10: 6 × (5 - 9 +