题目内容
化简:(
+
)÷
-
.
x |
x+1 |
1 |
x-1 |
x2+1 |
x2+x |
1 |
x-1 |
原式=
•
-
=
-
=1.
x(x-1)+x+1 |
(x+1)(x-1) |
x(x+1) |
x2+1 |
1 |
x-1 |
x |
x-1 |
1 |
x-1 |
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题目内容
x |
x+1 |
1 |
x-1 |
x2+1 |
x2+x |
1 |
x-1 |
x(x-1)+x+1 |
(x+1)(x-1) |
x(x+1) |
x2+1 |
1 |
x-1 |
x |
x-1 |
1 |
x-1 |