(8y^2-12xy)/(2y-3x)

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) (8y^2-12xy)/(2y-3x) 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] （12x^2y-8xy^2+16xy）/-3x+2y-4=? (12x^2y-8xy^2+16xy）/-3x+2y-4=? X^Y-2XY^2+y^3 已知xy/x+y=2,求代数式8x-5xy+8y/-x+3xy-y的值 诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy) 已知xy/x+y=2,则代数式3x-5y+8y/-x+3xy-y的值 xy-2x+6y-12 xy+8 x^2-xy-6y^2+3xy+y+2 因式分解1、2x^2(y+2)-3y^3(x-3)-12xy 2、x^3-4xy+4y^2-6x+12y+8 因式分解-x^2y+8xy^2-16y^3 x平方-2xy-3y平方+8y-4 X×X-2XY-Y×Y+2X-2Y+2=02X×2X-4XY-2Y×2Y+3X-3Y+4=0X×X+2XY+Y×Y+X+Y-56=0X×X-2XY+Y×Y-X+Y-12=0X×X-3XY+Y×Y=-13X×3X-XY+3Y×3Y=13 两个在一起的方程之间有所联系（要求一步一步写出来） (x+y)(x-y)-(2xy+3y)平方平方是(2xy+3y)的 2x²y-3(2xy-xy)-xy 计算：（1）8x^2y^2*(-3x/4y^5) (2)(x+y)^2/xy-y^2*(y-x)^2/xy+y^2