m^2-2m/4-m^2化简数学
问题描述：
m^2-2m/4-m^2化简数学
答
m^2-2m/4-m^2
=m(m-2)/(2+m)(2-m)
=-m/(2+m)
m^2-2m/4-m^2化简数学
m^2-2m/4-m^2
=m(m-2)/(2+m)(2-m)
=-m/(2+m)