怎么将2x-3xy-2y+3x+4y-2因式分解
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怎么将2x-3xy-2y+3x+4y-2因式分解
x^2-4xy+3y^2=(x-3y)(x-y)x^2-4xy+3y^2 怎么分解成(x-3y)(x-y)
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
x-y/x+y=-1/2,x*x-xy-2y*y/x*x-3xy+2y*y的解是多少?同上,请将过程写出,
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
化简2(x²y+xy)-3(x²y-xy)-4x²y
(x+3y)(x-y)-(x+y)^2 =x²-xy+3xy-3y²-x²-y²-2xy =-4y² 那个2xy怎么算的
将多项式3x^2y^2-xy^3+5x^4y-7y^5+x^6y^4分别按x,y降幕排列
(-3x^y+2xy)-( )=4x^+xy
x²y+2xy-3y怎么化简
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
X^Y-2XY^2+y^3
(x^2-xy)y÷y-x/xy怎么做?
x²-y²+5x+3y+4(x+y-2xy)(x+y-z)+(xy-1)²
x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2
5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)
3(x^2y+xy)-4(xy-2x^2y)-(-xy)