通分:-x/a(x-y) ,y/b(y-x)
通分x/a(x-y),y/b(y-x) 通分 a/(y-x)的平方,b/(x-y)*(x+y)
分式的通分与约分①:x/a(x-y),y/b(y-x);②:1/x^2-1,2x/x^2-3x+2;
x/(x+y)(x-y)的三次方,y/(y+x)(y-x)的平方通分
2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分
(5)a(x+y)-b(x+y)-x-y
通分x+y分之x-y,x-y分之x+y
x/xy-y²与y/x²-xy 通分
x+y分之一与x-y分之一通分,
通分1/2x,2/3y3/2bc,2/5c21/a(x-y),1/b(y-x)1/b-a,1/a2-b21/x2-2x+
通分(1)6c/a²b与c/3ab² (2)x - y/2x+3y与xy/(x+y)²
通分:3y分之x与2y平方分之3x,a平方b分之6c与3ab平方分之c,2x+2y分之x-y与(x+y)平方分之xy 要
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)