1.(3x^3)^2*(-2y^2)^5/(-6xy^4)PS:加号我不知道是不是*,好象是的.(但好像是这样的).
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1.(x+y-z)+(x-y+z)-(x-y-z) 2.2x-(3x-2y+3)-(5y-2)
化简:5(x-y)+2(x+y)-3(x-y)
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(2x-3y)-(5x-y)
(2X-3y)-(5x-y)
(2x-5y)(3x+y)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
1.(x+2)^2-(x+y)^32.(x-y)^2-(x-y)^33.(x-y)^2-(y-x)^3
[(x+2y)(x-2y)-(2x-y)^2+(3x-y))2x-5y)]/(-x)我急用
[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答
x(x-y)2-(y-x)3
(5x+2y)(5x-2y)-(3x+2y)(3x-2y)
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
化简:[(x+2y)^2-(x+y)(3x-y)-5y^2]/2x
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
(2x -y)(3x-2y)+(y-x)(2x-5y)