题目内容
计算:
•
.
| (x-2)(x-3) |
| x2-1 |
| x2+x |
| x-3 |
考点:分式的乘除法
专题:
分析:首先将分子与分母分解因式进而化简求出即可.
解答:解:
•
=
×
=
.
| (x-2)(x-3) |
| x2-1 |
| x2+x |
| x-3 |
=
| (x-2)(x-3) |
| (x-1)(x+1) |
| x(x+1) |
| x-3 |
=
| x(x-2) |
| x-1 |
点评:此题主要考查了分式的乘除运算,正确分解因式是解题关键.
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