化简分式{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}的结果是?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 05:16:24
化简分式{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}的结果是?

化简分式{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}的结果是?
化简分式{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}的结果是?

化简分式{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}的结果是?
原式={[(x-y)^2+4xy]/(x-y)}{[(x+y)^2-4xy]/x+y}
={[(x+y)^2]/(x-y)}{[(x-y)^2]/x+y}
=(x+y)(x-y)=x^2-y^2

{X-Y+(4XY)/(X-Y)}{X+Y-(4XY)/(X+Y)}=(x^2-y^2)-(4XY)^2/(X^2-Y^2)