Question

立方根计算题求X的值,记住给过程和方法1. X³=0.008 2.X³+1=-7 3. (x-1)&

Answer 1

x³=0.008

x³=0.2³

x=0.2

x³+1=-7

x³=-8

x³=(-2)³

x=-2

(x-1)³=27

(x-1)³=3³

x-1=3

x=4

2(x+3)³=16

(x+3)³=8

(x+3)³=2³

x+3=2

x=-1