问题:
解答下列各题.
(1)化简:(
2x
x-3
-
x
x+3
)÷
x
x2-9
(2)解方程:
1
x
=
5
x+3
(3)请你先将
x2-2x
x-1
.(1-
1
x
)化简,再自选一个合理的x取值,求原式的值.
解答下列各题.
(1)化简:(
-
)÷
(2)解方程:
=
(3)请你先将
.(1-
)化简,再自选一个合理的x取值,求原式的值.
(1)化简:(
2x |
x-3 |
x |
x+3 |
x |
x2-9 |
(2)解方程:
1 |
x |
5 |
x+3 |
(3)请你先将
x2-2x |
x-1 |
1 |
x |
参考答案: