4(x-1)^2=9(x-1)^2=9/4x-1=±3/2x1=5/2 x2=-1/2 不懂可追问,有帮助请采纳,谢谢!
4(x-1)²=9(x-1)²=9/4x-1=±3/2x=1±(3/2)得:x=5/2或x=-1/2
(x-1)²=9/4x-1=-3/2,x-1=3/2x=-1/2,x=5/2
x-1=正负2分之3
x1=5/2 x2=-1/2