作业帮约分x-(y-z)^2/(x+y)^2-z^2
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 09:17:04
约分x-(y-z)^2/(x+y)^2-z^2
约分x-(y-z)^2/(x+y)^2-z^2
约分x-(y-z)^2/(x+y)^2-z^2
x-(y-z)^2/(x+y)^2-z^2=(x-y+z)(x+y-z)/(x+y-z)(x+y+z)=(x-y+z)/(x+y+z)
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来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 09:17:04
约分x-(y-z)^2/(x+y)^2-z^2
约分x-(y-z)^2/(x+y)^2-z^2
约分x-(y-z)^2/(x+y)^2-z^2
x-(y-z)^2/(x+y)^2-z^2=(x-y+z)(x+y-z)/(x+y-z)(x+y+z)=(x-y+z)/(x+y+z)