Алгебра помогите решить

1. √(392·8) = √(196·16) =
√196 · √16 = 14·4 = 56

2. ¾·√(288·8) = ¾ · √144 · √16 =
¾·12·4 = 3·12 = 36

3. (2√3)² - (√6)² = 12 - 6 = 6

4. 3 · [√(3·48) - √(3·147)] =
3·(√144 - √441) = 3·(12-21) = 3·(-9) = -27

5. 6²·5 = 36·5 = 180

6. 9√(320/5) = 9√64 = 9·8 = 72

7. 25·19/20 = 25·(20-1)/20 =
25·(1 - 1/20) = 25 - 1¼ = 23¾ = 23,75

8. ¼·√(384/6) = ¼·√64 = ¼·8 = 2

9. √(192/3) = √64 = 8

10. √(2,4·60) = √(24·6) = √144 = 12