Question 74659
Evaluate: {{{-3sqrt(64)}}}, if possible

My answer was 24, but the answers given was:
;
a)-4
b)-8
c)-64/3
d) Not a real number
:
The way you have it written the answer would be -24, but since this is not a choice, I think that perhaps it's suppose to be 
- third root of 64  (with the three as an index to the radical)
In that case 

=- third root of (4*4*4)
=-third root of (4^3)
=-4 
which is a.
Happy Calculating!!!