4xy^2+4x^2y+y^3 -m^3+2m^2-m 第一道-m^3+2m^2-m 第二道4xy^2+4x^2y+y^3

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4xy^2+4x^2y+y^3 -m^3+2m^2-m 第一道-m^3+2m^2-m 第二道4xy^2+4x^2y+y^3
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4xy^2+4x^2y+y^3 -m^3+2m^2-m 第一道-m^3+2m^2-m 第二道4xy^2+4x^2y+y^3
4xy^2+4x^2y+y^3 -m^3+2m^2-m
第一道-m^3+2m^2-m
第二道4xy^2+4x^2y+y^3

4xy^2+4x^2y+y^3 -m^3+2m^2-m 第一道-m^3+2m^2-m 第二道4xy^2+4x^2y+y^3
4xy^2+4x^2y+y^3
=y(4xy+4x²+y²)
=y(2x+y)²;
-m^3+2m^2-m
=-m(m²-2m+1)
=-m(m-1)²;
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4xy^2+4x^2y+y^3
=y(4x²＋4xy＋y²)
=y(2x+y)²
-m^3+2m^2-m
=-m(m²-2m＋1)
=-m(m-1)²

4xy^2 4x^2y y^3
=y(4xy 4x^2 y^2)
=y(2x y)^2
-m^3 2m^2-m
=-m(m^2-2m 1)
=-m(m-1)^2

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 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(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2 5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2) xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2 （X-3xy+4xy-y）-[-2x-2（xy-3/2xy）-y]+6xy的过程 3(x^2y+xy)-4(xy-2x^2y)-(-xy) 通分:x-y/2x+2y与xy/(x+y)^2 ,2mn/4m^2-9与2m-3/2m+3格式：例如：x-y/2x+2y与xy/(x+y)^2最简公分母是.x-y/2x+2y=.xy/（x+y）^2=. （-3x^y+2xy)-( )=4x^+xy 当x-y=2xy时,求4x-3xy-4y/xy XY(XY+3)+(XY+4)+4(X+Y+1)-(X+Y+2) 3（x平方y+xy)-4(xy-2x平方y)-(xy) x的平方-4xy+4y的平方-3x+6y=(x-2y)(x-2y+m),那么m= 若多项式5x*x-2mxy-3y*y+4xy-3x+1中不含xy项,求（-（m*m*m）+2（m*m）-m+1）-（m*m*m+2m*m-m+4） 多项式x^2-4xy+m可以因式分解为(x+3y)(x-7y),则m的值为 化简：2x²y+{2xy-[3x²y-2(-3x²y+2xy)]-4xy}化简：2x²y+{2xy-[3x²y-2(-3x²y+2xy)]-4xy}