36(x-1)^2-12(x-1)y+y^2 分解因式
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36(x-1)^2-12(x-1)y+y^2分解因式36(x-1)^2-12(x-1)y+y^2分解因式36(x-1)^2-12(x-1)y+y^2分解因式36(x-1)^2-12(x-1)y+y^2
36(x-1)^2-12(x-1)y+y^2 分解因式
36(x-1)^2-12(x-1)y+y^2 分解因式
36(x-1)^2-12(x-1)y+y^2 分解因式
36(x-1)^2-12(x-1)y+y^2
=[6(x-1)-y]^2
=(6x-y-6)^2
设t＝x-1
36t^2-12ty+y^2
=(6t-y)^2
=(6x-6-y)^2
36(x-1)^2-12(x-1)y+y^2
=(6x-6)²-2*(6x-6)y+y²
=(6x-6-y)²
36(x-1)^2-12(x-1)y+y^2 =(6(x-1)-y)^2=(6x-y-6)^2
[6(x-1)-y]^2
36（x-y)^2-12(x-y)+1分解因式
因式分解：x^2 -12xy+36y^2 - x + 6y （x-6y)(x-6y-1)
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y
1、y-x/x²-y²2、(x-y)(y-z)(z-x)/(z-y)(y-x)(x-z)
(x-y)^2+12(x-y)+36
（x+y)(x+y-1)-12因式分解
(x-y)(2x-y-1)
(x/x+y-x/y-x-2xy/x.x-y.y)/(1/x-1/y) 分式化简
解方程组 2x-y=5 2y/x-x/y=12x-y=52y/x-x/y=1
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
已知x^2+y^2-8x+12y+52=0 ,求1/2x-1/x-y(x-y/2x-x^2+y^2)
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2y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|x-1|=2
（x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3.
(x+y)(x-y)+4(y-1)
x.y都是自然数,且x(x-u)-y(y-x)+12,求x.y得值快1且x(x-y)-y(y-x)=12
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