3(x-1)^2=27 解方程,要有详细的步骤

3(x-1)^2=27 解方程,要有详细的步骤
3(x-1)^2=27 解方程,要有详细的步骤

3(x-1)^2=27 解方程,要有详细的步骤
(x-1)^2=9
x-1=3或x-1=-3
x=4或x=-2

x-1平方等于9，x-1等于正负3，x1=4 x2=-2

X=4。。。。