3道初二分式计算填空1.(x^2/-y^2)*(-y^2/x)^5÷(xy)7=________.2.(x^2-y^2/
初二下数学分式计算3y/2x+2y+2xy/x²+xy
已知1/x-1/y=5 求分式-x+xy+y/2x+7xy-2y
已知1/x-1/y=5,求分式y+xy-x/2x+7xy-2y的值.
已知1/X-1/y=5,求分式(y+xy-x)/(2x+7xy-2y)的值
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)
若1/x+1/y=2,则分式(2x+3xy+2y)/(x-xy+y)的值是________.
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(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-
若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值
已知x-y/xy=3,求分式2x+3xy-2y/x-2xy-y的值.
若y-x/xy=3,求分式2x+3xy-2y/x-2xy-y
计算:(x+y/x-y)÷(xy+x^2)