分式计算,(xy-x²)÷(x-y)/(xy)
用分式表示2x²y(x-y)÷[12xy²(y-x)]的商,并约分
计算分式加减1、4/(x-2)-(x-6)/(2-x)2、(x-y)²/(2xy)-(x²-y²
计算,(x^2-xy)/(xy^2)·y/(y-x) 分式的 乘法,
计算:3(2x²-3xy²)-2(2xy²-3x²y)
初中分式计算:(xy-x²)·xy/x-y
初二数学分式化简已知x-3y=0(xy不等于0),求【(2x+y)/(x²-2xy+y²)】*(x-
分式 已知y-2x=0(x≠0且y≠0),求代数式(x²-y²)(x²-xy+y²
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
分式的乘除法计算::x²-4y²/x²+2xy+y²÷x+2y/x²+
分式(x²-y²\xy)-(xy-y²\xy-x²)可化简为
先化简,再求值:(x²)/(x²-2xy+y²)÷(x²+2xy+y²)/(x&
分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4