major radical review
1. (9√8)(-4√8)
2. 5 √3(9 √5) + 4(-2 √21)
3. (2 √2 + √14)(3 + √7)
4. 3 √25 + 8 √13 + 9 √100
5. 9 / √7
6. 4 √11 / 5 + √6
7. 8 - √6 / 4 - √2
8. ^3 √x + 5 = 1
9. (3x - 5) ^0.5 - 3 = 1