问题:
解方程:
(1)
3
x-1
-
x+3
x2-1
=0
(2)x 2-4x+1=0(用配方法)
解方程:
(1)
-
=0
(2)x 2-4x+1=0(用配方法)
(1)
3 |
x-1 |
x+3 |
x2-1 |
(2)x 2-4x+1=0(用配方法)
参考答案: