有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?
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有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?（x-y)/(2x+
有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?
有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?
有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?
（x-y)/(2x+2y) =(x-y)/2(x+y) =(x-y)(x+y)/2(x+y)^2 xy/(x+y)^2 =2xy/2(x+y)^2 x - y/2x + 2y =(x^2-y+4xy)/2x =(x^2-y+4xy)(x+y)^2/2x(x+y)^2 xy/(x+y)^2 =2x^2y/2x(x+y)^2 不知你的分式是哪种情况.
通分 分母相同 X-Y/2X+2Y与2XY/2X+2Y
有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?
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