Question

1.当m满足什么条件时,关于X的方程m/(x-2)(x+1)=(x/x+1)-(x-1/x-2)的解是正数．（要写过程哦

Answer 1

1.

m/(x-2)(x+1)=(x/x+1)-(x-1/x-2)

m/(x-2)(x+1)=(x^2-2x)/(x+1)(x-2)-(x^2-x)/(x+1)(x-2)

m/(x-2)(x+1)=-x/(x-2)(x+1)

m=-x

x=-m>0

m