Determine whether the number is a perfect square, a perfect cube, or neither. If the number is a perfect square or a perfect cube, give the roots. The roots may only be rational numbers.
256
555
–64
–4
Rational numbers are described as "numbers that can be written as a fraction, all integers are rational numbers". 256 is a perfect square of 16 or -16. 555 is neither. -64 is a perfect cube of -4 -4 is neither, for the square root of -4 is 2i, which is an imaginary number.
