解分式方程:(1)3/(x-1)=2/(x-2);(2)(2x²+1)/(x+2)=2x;(3)x/(x+1)+(x-1)/x=2;(4)2/(x+1)+3/(x-1)=6/(x²-1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/25 04:07:30
解分式方程:(1)3/(x-1)=2/(x-2);(2)(2x²+1)/(x+2)=2x;(3)x/(x+1)+(x-1)/x=2;(4)2/(x+1)+3/(x-1)=6/(x²-1)

解分式方程:(1)3/(x-1)=2/(x-2);(2)(2x²+1)/(x+2)=2x;(3)x/(x+1)+(x-1)/x=2;(4)2/(x+1)+3/(x-1)=6/(x²-1)
解分式方程:(1)3/(x-1)=2/(x-2);(2)(2x²+1)/(x+2)=2x;(3)x/(x+1)+(x-1)/x=2;
(4)2/(x+1)+3/(x-1)=6/(x²-1)

解分式方程:(1)3/(x-1)=2/(x-2);(2)(2x²+1)/(x+2)=2x;(3)x/(x+1)+(x-1)/x=2;(4)2/(x+1)+3/(x-1)=6/(x²-1)
(1)3/(x-1)=2/(x-2)
3(x-2)=2(x-1)
x=4
(2)(2x²+1)/(x+2)=2x
2x²+1=2x(x+2)
x=1/4
(3)x/(x+1)+(x-1)/x=2
(x²+x²-1)/x(x+1)=2
2x²-1=2x(x+1)
x=-1/2
(4)2/(x+1)+3/(x-1)=6/(x²-1)
(2x-2+3x+3)/(x²-1)=6/(x²-1)
5x+1=6
x=1
当x=1时,分母(x-1)=0,该分式方程无解.
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