问题:
(1)计算:(x+1) 0-
12
+|-
3
|
(2)解方程:2x 2-2x-1=0
(3)化简:
x-1
x2-1
-
x
x2-x
.
(1)计算:(x+1) 0-
+|-
|
(2)解方程:2x 2-2x-1=0
(3)化简:
-
.
12 |
3 |
(2)解方程:2x 2-2x-1=0
(3)化简:
x-1 |
x2-1 |
x |
x2-x |
参考答案: