求下列各式中X的值:(1)X³=0.008(2)X³-3=8分之3(3)(X-1)³=64
问题描述:
求下列各式中X的值:(1)X³=0.008(2)X³-3=8分之3(3)(X-1)³=64
答
(1)x3=0.008; x=0.2
(2)x3-3=3/8; x3=27/8 x=3/2
(3)(x-1)3=8. x=3
请采纳
答
(1)x=0.2
(2)x=3/2
(3)x=5
答
(1)X³=0.008
x=0.2
(2)X³-3=8分之3
x³=8分之27
x=2分之3
(3)(X-1)³=64
x-1=4
x=5