(3-2x)/(x-3)+(2+mx)/(3-x)=-1
(3-2x)/(x-3)-(2+mx)/(x-3)=-1
(3-2x)-(2+mx)=-(x-3)
3-2x-2-mx=-x+3
-x-mx=2
-(1+m)x=2···········①
要使原方程无解,令x=3即可(x=3是方程的增根),得
-(1+m)*3=2
m=-5/3.
另外,对于①式,如果1+m=0,则x=0,但此时原方程两边不等,所以x≠0,故要使原方程无解,只需使1+m=0即m=-1,
综上,当m=-1和-5/3时,原方程无解.
关于x的分式方程(x-3/3-2x)+(3-x/2+mx)=-1 求M的值 重赏
关于x的分式方程(x-3/3-2x)+(3-x/2+mx)=-1 求M的值 重赏
数学人气:153 ℃时间:2019-12-18 20:55:29
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