题目内容
已知
+
=
,那么A=______,B=______.
A |
2x-y |
B |
3x+y |
7x-y |
(2x-y)(3x+y) |
A |
2x-y |
B |
3x+y |
A(3x+y)+B(2x-y) |
(2x-y)(3x+y) |
7x-y |
(2x-y)(3x+y) |
∴(3A+2B)x+(A-B)y=7x-y,即
|
解得:A=1,B=2,
故答案为:1;2.
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题目内容
A |
2x-y |
B |
3x+y |
7x-y |
(2x-y)(3x+y) |
A |
2x-y |
B |
3x+y |
A(3x+y)+B(2x-y) |
(2x-y)(3x+y) |
7x-y |
(2x-y)(3x+y) |
|