将:3/x + ax/(x+1)=2- 3/(x+1)整理得:
(a-2)x²+4x+3=0
要使3/x + ax/(x+1)=2- 3/(x+1)有增根x=-1
即3/x + ax/(x+1)=2- 3/(x+1)有
x=-1
将x=-1代入得:a-3=0
解得:a=3
将:3/x + ax/(x+1)=2- 3/(x+1)整理得:
(a-2)x²+4x+3=0
要使3/x + ax/(x+1)=2- 3/(x+1)有增根x=-1
即3/x + ax/(x+1)=2- 3/(x+1)有
x=-1
将x=-1代入得:a-3=0
解得:a=3