计算:x^2+y^2/x-y-2xy/x-y
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/14 02:13:31
计算:x^2+y^2/x-y-2xy/x-y
计算:x^2+y^2/x-y-2xy/x-y
计算:x^2+y^2/x-y-2xy/x-y
x^2+y^2/x-y-2xy/x-y
(x^2+y^2-2xy)/(x-y)
=(x-y)^2/(x-y)
=x-y
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来源:学生作业帮助网 编辑:作业帮 时间:2024/09/14 02:13:31
计算:x^2+y^2/x-y-2xy/x-y
计算:x^2+y^2/x-y-2xy/x-y
计算:x^2+y^2/x-y-2xy/x-y
x^2+y^2/x-y-2xy/x-y
(x^2+y^2-2xy)/(x-y)
=(x-y)^2/(x-y)
=x-y