1分之x-1+(1分之x+3)=4分之x2-9
问题描述:
1分之x-1+(1分之x+3)=4分之x2-9
答
1/(x-1)+1/(x+3)=4/(x²-9)
(x²-9)+(x-1)(x-3)=x-1
x=(5±√65)/4
经检验,x=(5±√65)/4是原分式方程的解