64x的三次方+125=0 (x-1)的三次方=8
问题描述:
64x的三次方+125=0 (x-1)的三次方=8
答
64x^3+125=0
64x^3=-125
x^3=-125/64
x=-5/4
(x-1)^3=8
x-1=2
x=3