1. √5 × √5 =
2. √16 × 16 =
3. 321/5 × 321/5 =
4. 1251/6 × 1251/6 =
5. √81 × 4√81 =
6. 3√49 × 491/6 =
7. 4√256 × 2561/8 =
8. 3√144 × 1441/6 =