simplify the following radical expression : 4 sqrt (81/16)

Question

a)3/2
b)2
c)2/3
d)3

a

Answer 1

I got a, also.

Answer 2

thanks quidditch so much for your help :)

Answer 3

4 sqrt (81/16)
= 4(9/4)
= 9

Answer 4

i got that as well Reiny but that's not one of the answer though

Answer 5

I think that the 4 is probably inside the "crook" of the radical sign to indicate the fourth root of (81/16).

Answer 6

If the problem means 4 times the sqrt
(81/16),then Reiny's answer(9) and
procedure is correct.

If the problem is asking for the 4th
root of(81/16), then the answer is a(3/2).