已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?

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已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?已知:4x+1/(x-2)(x-5)=A/x-5

已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?
已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?

已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?
(4x+1)/(x-2)(x-5)=A/(x-5)+B/(x-2)
=> 4x+1 = A(x-2) +B(x-5)
put x=2
9 = -3B
B = -3
put x=5
21=3A
A =7