如果2x+1/(x+2)(x+3)=A/x+2+B/x+3,则A=多少,B=多少.

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如果2x+1/(x+2)(x+3)=A/x+2+B/x+3,则A=多少,B=多少.
如果2x+1/(x+2)(x+3)=A/x+2+B/x+3,则A=多少,B=多少.

如果2x+1/(x+2)(x+3)=A/x+2+B/x+3,则A=多少,B=多少.
2x+1/(x+2)(x+3)=A/x+2+B/x+3
2x+1/(x+2)(x+3)=A(x+3)+B(x+2)/(x+2)(x+3)
2x+1/(x+2)(x+3)=(A+B)x+(3A+2B)/(x+2)(x+3)
所以：
A+B=2
3A+2B=1
解得：A=-3,B=5