x^4-3xy-10y^2+x+9y-2
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因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
已知x^2+9y^2-2x-6y+2=0,求{-(xy/(x-y)^2}^4*(y^2-xy/x)^3*x^4/y^10/(x/xy-y^2)^5的值
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
已知2x+xy=10,3y+2xy=6.求4x+8xy+9y=?
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
1.24xy^4+2x^3y^2-2x^5 2.4x^4y^2-5x^2y^2-9y^2 3.24x^2y-30xy-75y 4.10(y+2)^2-29(y+2)+101.24xy^4+2x^3y^2-2x^5 2.4x^4y^2-5x^2y^2-9y^2 3.24x^2y-30xy-75y 4.10(y+2)^2-29(y+2)+10
1.24xy^4+2x^3y^2-2x^5 2.4x^4y^2-5x^2y^2-9y^2 3.24x^2y-30xy-75y 4.10(y+2)^2-29(y+2)+101.24xy^4+2x^3y^2-2x^5 2.4x^4y^2-5x^2y^2-9y^2 3.24x^2y-30xy-75y 4.10(y+2)^2-29(y+2)+10
3x*x+5xy-2y*y+x+9y-4
3x*x+5xy-2y*y+x+9y-4请因式分解
化简2(x²y+xy)-3(x²y-xy)-4x²y
约分:(1)-4x^2y^3/10xy^4(2)(x^2-4xy+4y^2)(y-x)/(2y-x)(x^2-y^2)
(-3x^y+2xy)-( )=4x^+xy
(x^2y-9y)/(xy+3y)
因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy-
因式分解:4a^2(x-y)+9(y-x) -4x^2y^2+x^3y+4xy^3
因式分解:4a^2(x-y)+9(y-x) -4x^2y^2+x^3y+4xy^3