题目内容
若x2=9,则x3=________
若x2=9,则x3=________,若x2=64,则=________.
若x2=16,则x=________
若x3=-8,则x=________.
若x2=5,则x=________;若x3=0.125,则x=________.
若x2=4,则x3=______.