4(x ^-4)*-64=0,则X的值为____.

问题描述:

4(x ^-4)*-64=0,则X的值为____.
^是立方,*是平方...

4(x&sup3-4)&sup2-64=0
(x&sup3-4)&sup2=16
(x&sup3-4)=±4
(1)x&sup3=8
x=2
(2)x&sup3=0
x=0
答案为两个:2或者0