√49/2+√108-√12=?

√49/2+√108-√12=?

√（49 / 2）+ √108 - √12
= √（7 ² × 2 / 2 ²）+ √（6 ² × 3）- √（2 ² × 3）
= （7 / 2）√2 + 6√3 - 2√3
= (7 / 2）√2 + 4 √3

1. Calculation: 6 - (- 12) / (- 3) = []; 3 × (- 4) + (28) / (- 7) = [] 2. Mixed operation of addition, subtraction, multiplication and division with 3,7, - 5, - 4
Make the result equal to 24. Write a formula that meets the condition: []
Press the computer key 3 △ (-) 6 =, the result will be displayed as A. - 0.5 b.0.5 C. - 2 D.2

1、2 -8
2、7-(-5)-3x(-4)=24 】
Use the computer to press 3 △ 6 in sequence as [a]

Simple algorithm of 4.78-1.28 + 1.22-0.72

4.78+1.22-（1.28+0.72）