分式约分 27x^5y^6-3x^3y^8/-12x^4y^2-4x^3y^3
初二分式约分3x-4y/8xy-6x^2
数学,分式:约分下列两个式子(在能约分的情况下)(2x+10y)/(2x-5y)和(4x+3y)/(6x-4y)
x^8-x^7y+x^6y^2-x^5y^3+x^4y^4-x^3y^5+x^2y^-xy^7+y^8
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(
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;
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)
化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90)
给定一列分式,y/x^3,-y^2/x^5,y^3/x^7,-y^4/x^9,.(其中xy不等于0),试写出给定分式中第
(x+2)(x+3) (x-4)(x+1) (y+4)(y-2) (y-5)(y-3)
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20