-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位
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-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位-5x^2y^2-(-3x^
-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位
-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位
-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2-(x-1)+x拜托了各位
-5x^2y^2-(-3x^2y^2+2(3x-x^2y^2)-(x-1)+x=-5x^2y^2-(-3x^2y^2+6x-2x^2y^2)-x+1+x=-5x^2y^2+3x^2y^2-6x+2x^2y^2-x+1+x=-6x+1
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)
x(x-y)2-(y-x)3
(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-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
[(x+2y)(x-2y)-(2x-y)^2+(3x-y))2x-5y)]/(-x)我急用
化简y(x+y)+(x+y)(x-y)-x^2
[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答
计算:x+2y/x-y+2x/y-x-3y/x-y