初二数学解分式方程问题
问题描述:
初二数学解分式方程问题
1/(x-10)+ 1/(x-6)= 1/(x-7)+ 1/(x-9)
x+1/x+2 - x+2/x+3 = 1/x+7 - 1/x+6
答
1.(x-7)(x-9)(x-10+x-6)=(x-10)(x-6)(x-7+x-9)(x-8)(x-7)(x-9)=(x-10)(x-6)(x-8)(x-8)[(x-7)(x-9)-(x-10)(x-6)]=0(x-8)[(x方-16x+63)-(x方-16x+60)]=03(x-8)=0x=8经检验,是2.(x+1)(x+3)(x+6)(x+7)-(x+2)(x+2)...