I have a little question concerning negative roots. I just happened to be doing an exercise which required taking the fifth root of (-32). I thought that one cannot take a root out of a negative number if the answer is supposed to belong to the real numbers. However is it so one cannot take the square root of a negative number, and any other even root(e.g fourth root, sixth root), but one can take roots of negative numbers if the root is negative(e.g cube root)?