3X-(5x-2y)+3y
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![3X-(5x-2y)+3y](/uploads/image/z/1163247-15-7.jpg?t=3X-%285x-2y%29%2B3y)
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3X-(5x-2y)+3y
3X-(5x-2y)+3y
3X-(5x-2y)+3y
原式=3x-5x+2y+3y
=-2x+5y
3X-(5x-2y)+3y
=3x-5x+2y+3y
=-2x+5y
3X-(5x-2y)+3y
=3X-5x+2y+3y
=5y-2X
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
[(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)
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解
5x^3y(x-y)^3-10x^4y^3(y-x)^2
化简:[(x+2y)^2-(x+y)(3x-y)-5y^2]/2x
(x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5)