通分:x-y/2x+2y与xy/(x+y)^2 ,2mn/4m^2-9与2m-3/2m+3
通分:x-y/2x+2y与xy/(x+y)^2 ,2mn/4m^2-9与2m-3/2m+3
通分(x-y)÷(2x+2y)与xy÷(x+y)² 2mn÷4m²-9与(2m-3)(2m+3)
1.2x+2y分之x-y 与(x+y)的平方分之xy 通分 2.4m的平方-9分之2mn 与 2m+3分之2m-3 通分
通分①x/3y与3x/2y²②x-y/2x+2y与(x-y)/(x+y)²③2mn/4m²
通分:1、x²-y²分之1与x²+xy分之1;2、m²-9分之1与3+m分之1;
2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分
分式通分三道题2xy/(x+y)的平方和x/x的平方-y的平方x-y/2x+2y和xy/(x+y)的平方2mn/4m的平
分式约分和通分约分:10x^4 y^3 z/-15x^2 y^4 z^2 m^2-3m/9-m^2通分:2/3a^2与1
通分x-y/2x+2y与xy/(x+y)的2次方
通分x-y/2x+2y与xy/(x+y)2
一道数学通分题x-y/2x+2y与xy/(x+y)²
2x+2y/x-y与(x²+y²)/xy通分