(x-1)²-1=0直接开平方
问题描述:
(x-1)²-1=0直接开平方
答
(x-1)²-1=0
(x-1)²=1
x-1=±1
x1=2,x2=0
(x-1)²-1=0直接开平方
(x-1)²-1=0
(x-1)²=1
x-1=±1
x1=2,x2=0