求下列各式中x的值: (1)x3=0.008; (2)x3-3=; (3)(x-1)3=8.
问题描述:
求下列各式中x的值: (1)x3=0.008; (2)x3-3=; (3)(x-1)3=8.
答
(1)x3=0.008;x=0.2
(2)x3-3=; ?
(3)(x-1)3=8. x=3求下列各式中x的值:(1)x3=0.008;(2)x3-3=3/8;(3)(x-1)3=64.(1)x3=0.008; x=0.2(2)x3-3=3/8; x3=27/8x=3/2(3)(x-1)3=8. x=3