27x^2+54x^2y+36xy^2+8y^3因式分解
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27x^2+54x^2y+36xy^2+8y^3因式分解27x^2+54x^2y+36xy^2+8y^3因式分解27x^2+54x^2y+36xy^2+8y^3因式分解原式=(3x)^3+3(18x^
27x^2+54x^2y+36xy^2+8y^3因式分解
27x^2+54x^2y+36xy^2+8y^3因式分解
27x^2+54x^2y+36xy^2+8y^3因式分解
原式
=(3x)^3+3(18x^2y+12xy^2)+(2y)^3
=(3x)^3+3[(3x)^2(2y)+(2y)^2(3x)]+(2y)^3
=(3x+2y)^3
（x^2+xy/x-y)/（xy/x-y)计算
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
x^2+xy+x=36,y^2+xy+y=20,求x+y.
x^2-xy/xy-y^2约分
27x^2+54x^2y+36xy^2+8y^3因式分解
27x^3+54x^2y+36xy^2+8y^3因式分解
.(x+y-2)(x+y-2xy)+(xy-1)^2
(x^2-xy)y÷y-x/xy怎么做?
代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy
(x+y)/x /(x-(2xy-y^2)/x) 因式分解
(xy-x²)÷(x²-2xy+y²/xy)×（x-y/x²）
x-y/x²÷x²-2xy+y²/xy*（xy-x²）
X-Y/2X+2Y XY/X+Y²
因式分解：x×x-xy-2y×y-x-y
（y/(x^2-xy)+x/(y^2-xy))除以(x-y)/(xy)
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)