6x^2+7xy+2y^2-8x-5y+2 因式分解如题
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3(x-y)²-7(x-y)+8(x-y)²+6(x-y)求详细过程(2) 5xy-4x²y-8xy²+3xy-xy²+4x²y
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
因式分解:8(x-2y)-x(7x+y)+xy.
诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy)
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)
x+y=8,xy=-2,求(5xy+4x+7y)+(6x-3xy)-(4xy-3y)的值
因式分解:-x平方+4x-4;8(x平方-2y平方)-x(7x+y)+xy,4x三次方-4x平方y-(x-y),x平方y-5xy平方+6y三次方
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
6(x-y)-7(xy)=21,2(x-y)-5(x+y)=-1
x^2-xy-2y^2+x+7y-6
x²+xy-2y²-x+7y-6
2X^+XY-Y^-4X+5Y-6
2x^+xy-y^-4x+5y-6=?
x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2
5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)
x(y-x)-y(x-y) (-3xy)*5c^2Y+6x^2(7/2xy^2-2y^2)
计算.化简4x²+2x+7+3x-8x²-26x²y+2xy-8x²y-4x-5xy+2y²x²-6x²y