8(x-0.5)的三次方+10的负三次方=0

问题描述:

8(x-0.5)的三次方+10的负三次方=0

8(x-0.5)³+1/10³=0
2³(x-0.5)³=-1/10³
(x-0.5)³=-1/(10³×2³)
(x-0.5)³=(-1/20)³
x-0.5=-1/20=-0.05
x=0.45