7/x2+x+1/x2-x=6/x2-1
5个回答
7/x(x+1)+1/x(x-1)=6/(x+1)(x-1)
两边乘x(x+1)(x-1)
7x-7+x+1=6x
2x=6
x=3
经检验,x=3是方程的解
相关问题
x^2+6x+7,X1+X2=-6,X1-X2=?
1/(x^2+7x)-1/(x^2+7x+6)+1/(x^2+7x+18)-1/(x^2+7x+12)=0
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(1)7/(x2+x)+3/(x2-x)=6/(x2-1)
2x-1/2x+x/x+2=1 求解, x+1/2(x-1)+x-1/6(x+1)=7 求解
2道分式方程1、(x+3)/(x+7)+(x+7)/(x-3)=2===2、(6x-2)/(2x-1)-(6x-3)/(
1-1/(x2+7x+6)=(x2-5x+5)/(x 2-5x+6)
①1=-(x-1)/2+(x-2)/6-(x+2)/3 ②2/7×(3x-7)=2-1.5x
解方程:7/(x^2+x)+1/(x^2-x)=6/(x^2-1)
(2x-1)/2-(2x+5)/3=(6x-7)/6-1