题目内容
若
=
+
,则M=______,N=______.
| 1-3x |
| x2-1 |
| M |
| x+1 |
| N |
| x-1 |
| M |
| x+1 |
| N |
| x-1 |
| M(x-1) |
| (x+1)(x-1) |
| N(x+1) |
| (x+1)(x-1) |
| (M+N)x+(N-M) |
| x2-1 |
| 1-3x |
| x2-1 |
∴M+N=-3,N-M=1,
∴M=-2,N=-1,
故答案为-2,-1.
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题目内容
| 1-3x |
| x2-1 |
| M |
| x+1 |
| N |
| x-1 |
| M |
| x+1 |
| N |
| x-1 |
| M(x-1) |
| (x+1)(x-1) |
| N(x+1) |
| (x+1)(x-1) |
| (M+N)x+(N-M) |
| x2-1 |
| 1-3x |
| x2-1 |