What Number Represents The Index Of Radical And Radicands HELP FAST.?

Radical and radicands HELP FAST.? - what number represents the index of

1.) ^ 4 sqrt 81st
What number is the rate of this radical expression?
2, 4 or 81?

2.) ^ 4 sqrt 81
What number is the root of this radical expression?
2.4 or 81?

3.) 8x ^ 3y ^ 2 sqrt.
Simplification (complete), the radical above. (Do not use decimal approximations)

4. sqrt 75
Simplification (complete), the radical above.

5. 32x sqrt 3 + sqrt 8x
Add and simplify radical expressions, if possible.

6. The 2nd sqrt 3b, at least the 9th 3b ^ ^ 20th Most 2b sqrt 2a ^ 2 sqrt 16ab
Add, subtract, and / or to and simplify completely.

7. -3 Sqrt 3 times sqrt 7th
Multiply and simplify completely, if possible.

8. (-4sqrt5 + SQRT2) (2sqrt5 least 3sqrt2)
Multiply and simplify possible.

32xy 9.sqrt ^ 5 / sqrt 4xy
Divide and simplify possible. !
Reduce, every radical simplification, rationalization of the denominator, if necessary, simplify again, reduce if possible, and if possible again


10. The 5th ^ 3 sqrt 5 / 6 sqrt 20xy
simplify and to share.




Please help me.

How to simplify radical expressions