题目内容
已知
=
+
,求A、B的值.
| x+3 |
| (x-2)2 |
| A |
| x-2 |
| B |
| (x-2)2 |
| x+3 |
| (x-2)2 |
| A |
| x-2 |
| B |
| (x-2)2 |
| A(x-2)+B |
| (x-2)2 |
可得x+3=A(x-2)+B=Ax+B-2A,
∴A=1,B-2A=3,
解得:A=1,B=5.
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题目内容
| x+3 |
| (x-2)2 |
| A |
| x-2 |
| B |
| (x-2)2 |
| x+3 |
| (x-2)2 |
| A |
| x-2 |
| B |
| (x-2)2 |
| A(x-2)+B |
| (x-2)2 |