10. 10. 4. 4, four numbers, how to calculate equal to 24

10. 10. 4. 4, four numbers, how to calculate equal to 24

Method 1: (10 × 10 - 4) △ 4
Method 2: 10 + 10 + ^ 4 + ^ 4
Note: ^ 4 means "root 4", which is equal to 2