(x/x-y)-(y/x+y)+(2xy/x^2-y^2)
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(x/x-y)-(y/x+y)+(2xy/x^2-y^2)
(x/x-y)-(y/x+y)+(2xy/x^2-y^2)
(x/x-y)-(y/x+y)+(2xy/x^2-y^2)
原式=x(x+y)/(x+y)(x-y)-y(x-y)/(x+y)(x-y)+2xy/(x+y)(x-y)
=(x²+xy-xy+y²+2xy)/(x+y)(x-y)
=(x²+2xy+y²)/(x+y)(x-y)
=(x+y)²/(x+y)(x-y)
=(x+y)/(x-y)
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
X-Y/2X+2Y XY/X+Y²
因式分解:x×x-xy-2y×y-x-y
(x^2+xy/x-y)/(xy/x-y)计算
|x|/x+y/|y|+xy/|xy|=
(x+y)/x /(x-(2xy-y^2)/x) 因式分解
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
(x-y)[(x+y)^2-xy]+(x-y)[(x-y)^2+xy]
xy(x-y)-x(x-y)²
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy
计算:2xy/(x+y)².(x+y)/4y
[x(x^2y^2-xy)-y(x^2-x^3y)]/(2x^2y)
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分