计算(x-y)³÷(y-x)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 05:45:31
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计算(x-y)³÷(y-x)²
计算(x-y)³÷(y-x)²
计算(x-y)³÷(y-x)²
原式=(x-y)³÷[-(x-y)]²
=(x-y)³÷(x-y)²
=x-y
(x-y)³÷(y-x)²
=(x-y)³÷(x-y)²
=x-y
写成分数形式更直观吧。