(x-y+(4xy)/(x-y))*(x+y-(4xy)/(x+y)) 请问化简结果是多少?谢谢heyinbu但是希望可以有解题过程

|x|/x+y/|y|+xy/|xy|= 计算下面式子{x-y+[(4xy)/(x-y)]}{x-y-[(4xy)/(x-y)]} （x-y+4xy/x-y）(x+y-4xy/x-y) (x-y+4xy/x+y)(x+y-4xy/x+y)等于的多少? 谢谢! 化简计算:[x-y+4xy/(x-y)] * [x+y-4xy/(x+y)] 计算:[x-y+4xy/(x-y)] * [x+y-4xy/(x+y)] 化简[x-y+4xy/(x-y)][x+y-4xy/(x-y)] 计算：（x-y+4xy/x-y)(x+y-4xy/x+y) (x一y+4xy/x-y)(x+y-4xy/x+y) 化简:(x+y-4xy/x+y)*(x-y-4xy/x-y)= (x-y+(4xy/x-y))(x+y-(4xy/x+y)) 分式计算 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) xy(x-y)-x(x-y)² (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 化简4xy-y-xy+x (x^-4y^)/(x^+2xy+y^)/(x+2y)/(2x^+2xy) 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6