解分式方程(要带步骤)解方程:(1):2/(x-3)=3/x; (2):6/(1-x)-(x+5)/[x(1-x)]=0; (3):2/(3x-1)-1=3/(6x-2); (4):10x/(2x-1)+5/(1-2x)=2; (5):(x+2)²/x²-3(x+2)/x+2=0; (6)x/(x²-4)+2/(x+2)=1/(x-2); (7)5/(x²+x)-1/(x²-x)=0; (8)x/(x-5)=(x-4)/(x+6).

问题描述:

解分式方程(要带步骤)
解方程:
(1):2/(x-3)=3/x;
(2):6/(1-x)-(x+5)/[x(1-x)]=0;
(3):2/(3x-1)-1=3/(6x-2);
(4):10x/(2x-1)+5/(1-2x)=2;
(5):(x+2)²/x²-3(x+2)/x+2=0;
(6)x/(x²-4)+2/(x+2)=1/(x-2);
(7)5/(x²+x)-1/(x²-x)=0;
(8)x/(x-5)=(x-4)/(x+6).

(1)两边同乘以x(x-3)得:2x=3x-9,解得x=9.检验,当x=9时,x(x-3)不等于0,故x=9是方程的根.
(2)两边同乘以x(1-x)得:6x-x-5=0,解得x=5.检验,当x=5时,x(1-x)不等于0,故x=5是方程的根.
(3)两边同乘以2(3x-1)得:4-2(3x-1)=3,解得x=1/2.检验,当x=1/2,2(3x-1)不等于0.故x=1/2是方程的根.
(4)两边同乘以2x-1得:10x-5=2(2x-1),解得x=1/2.检验,当x=1/2,2x-1=0.故x=1/2是方程的增根,原方程无解.
(5)两边同乘以x²得):(x+2)²-3x(x+2)+2x²=0,解得x=2.检验,当x=2,x²不等于0.故x=2是方程的根.
(6)两边同乘以(x+2)(x-2)得:x+2(x-2)=x+2,解得x=3.检验,当x=3,(x+2)(x-2)不等于0.故x=3是方程的根.
(7)两边同乘以(x²+x)(x²-x)得:x=0或x=3/2.检验,当x=0,(x²+x)(x²-x)=0,当x=3/2,(x²+x)(x²-x)不等于0,故x=3/2是方程的根,x=0是方程的增根.
(8)两边同乘以(x-5)(x+6)得:x(x+6)=(x-4)(x-5),解得x=4/3.检验,当x=4/3,(x-5)(x+6)不等于0,故x=4/3是方程的根.