A |
x−1 |
B |
x−2 |
A(x−2)+B(x−1) |
(x−1)(x−2) |
(A+B)x−(2A+B) |
(x−1)(x−2) |
∵
3x−4 |
x2−3x+2 |
3x−4 |
(x−1)(x−2) |
A |
x−1 |
B |
x−2 |
∴3x-4=(A+B)x-(2A+B),
∴
|
解得:
|
故答案为:1,2.
3x−4 |
x2−3x+2 |
A |
x−1 |
B |
x−2 |
A |
x−1 |
B |
x−2 |
A(x−2)+B(x−1) |
(x−1)(x−2) |
(A+B)x−(2A+B) |
(x−1)(x−2) |
3x−4 |
x2−3x+2 |
3x−4 |
(x−1)(x−2) |
A |
x−1 |
B |
x−2 |
|
|