one number x cube be tantamount to a, xfive hypotenuse (math.) be tantamount to a(x^5=a), Five x progression multiply be tantamount to a, then the number x is called afive cube root (math.).

any number of cube radicals there are and only five cube radicals evenly distributed around the center of the circle at the origin. x⁵=a, then x is called afive cube root (math.). 0 is 0five cube root (math.).