Cube root Cube root In mathematics, a cube root of a number "x" is a number "y" such that "y" = "x". All real numbers (except zero) have exactly one real cube root and a pair of complex conjugate cube roots, and all nonzero complex numbers have three distinct complex cube roots. For example, the real cube root of 8, denoted , is 2, because 2 = 8, while the other cube roots of 8 are −1 + "i" and −1 − "i". The three cube roots of −27"i" are The cube root operation is not distributive with addition or subtraction. In
Cosmic Cube the trio invaded a KubeKult base to steal the erratically functioning Cube but the Red Skull seized it and willed Captain America to be drawn inside it into an artificial reality during World War II, where Captain America and Bucky were on a mission to kill Hitler. The Red Skull believed that he would be able to wield the Cube's power only if Captain America killed Hitler's consciousness within the Cube. However, the Bucky within the Cube (actually a projection of Cap's own mind) revealed what was really going on and Captain America was able to will himself out of