Question

NEED HELP!! WILL FAN AND GIVE YOU ALOT OF MEDALS!!!!!!
1.simplify the radical expression
√64x^8
A.8x
B.8x^4
C.8√x^8
D.8x^2

2.simplify the rational expression.
√125h^4
A.5h^2√5
B.25h^2√5
C.h√62.5
D.5√5h^4

3.multiply. give your answer in simplest form.
2√9*3√15
A.18√15
B.6√6
C.6√24
D.18√6

Answer 1

The first one is D.

Answer 2

The second one is D.

Answer 3

I'm not sure about 3 though.