作业帮计算：（x-y+4xy/x-y)(x+y-4xy/x+y)
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/30 12:02:34
计算：（x-y+4xy/x-y)(x+y-4xy/x+y)
计算：（x-y+4xy/x-y)(x+y-4xy/x+y)
计算：（x-y+4xy/x-y)(x+y-4xy/x+y)
：原式=[（x^2-2XY+Y^2+4xy)/x-y][(x^2+2XY+y^2-4xy)/x+y]
=[(x+y)^2/(x-y)][(x-y)^2/(x+y)]
=X^2-Y^2