Asked by anthony

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

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


a
Answered by Quidditch
I got a, also.
Answered by anthony
thanks quidditch so much for your help :)
Answered by Reiny
4 sqrt (81/16)
= 4(9/4)
= 9
Answered by anthony
i got that as well Reiny but that's not one of the answer though
Answered by Quidditch
I think that the 4 is probably inside the "crook" of the radical sign to indicate the fourth root of (81/16).
Answered by Henry
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).
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