若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=
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若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=元素=x
若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=
若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=
若(x-2y)(x^2+2xy+4y^2)+8y^3=1,则x=
元素=x³+2x²y+4xy²-2x²y-4xy²-8y³+8y³
=x³=1
所以x=1
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
(x+y)(x+y+2xy)+(xy+1)(xy-1)(x+y)(x-y)+4(y-1)
计算:2xy/(x+y)².(x+y)/4y
若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*y)的值
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
(x^-4y^)/(x^+2xy+y^)/(x+2y)/(2x^+2xy)
（x^2+xy/x-y)/（xy/x-y)计算
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
若x-y=4,xy=1,求(-2xy+2x+3y)-(3xy+2y-2x)-(x+4y+xy)的值
若x-y=4,xy=1,则(2x+y-2xy)-(3x+2y+xy)-(4xy+3y-5x)=
2x(x-y)+4xy(y-x) 因式分解2x(x-y)+4xy(y-x) 因式分解
(x^2+2xy+y^2-4xy)*(x^2-2xy+y^2+4xy)
X-Y/2X+2Y XY/X+Y²
因式分解：x×x-xy-2y×y-x-y
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]