一元一次方程的分式方程~
问题描述:
一元一次方程的分式方程~
1.1/x-2 = 1-x/2-x -3
2.3/x + 6/x-1 = 5/xˇ-x
(xˇ就是 x的平方 )
3.1/x-1 - 1/x-2 - 1/x-3 + 1/x-4 = 0
答
1.1/x-2 = 1-x/2-x -3 1/x-2 = x-1/x-2 -3 两边乘x-21=x-1-3(x-2)=x-1-3x+6=-2x+5所以2x=5-1=4x=2分式方程要检验经检验,x=2时分母为0,所以是增根,舍去所以方程无解2.3/x + 6/x-1 = 5/xˇ-x 3/x+6/(x-1)=5/x(x-1)两边...