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来源：学生作业帮助网编辑：六六作业网时间：2024/12/26 01:27:46

. ..x+3)²/(x+3)(x-3)-x-3=0(x+3)/(x-3)-(x+3)=0(x+3)[1/(x-3)-1]=0x+3=0或1/(

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x+3)²/(x+3)(x-3)-x-3=0
(x+3)/(x-3)-(x+3)=0
(x+3)[1/(x-3)-1]=0
x+3=0或1/(x-3)-1=0
x=-3,1/(x-3)=1
x=-3,x=4
经检验,x=-3时分母x²-9=0,舍去
所以x=4