初中分式计算:(xy-x²)·xy/x-y
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/13 19:49:49
初中分式计算:(xy-x²)·xy/x-y
(xy-x²)·xy/x-y
=x(y-x)·xy/x-y
=-x²y
解
(xy-x²)×(xy)/(x-y)
=x(y-x)×(xy)/(x-y)
=-x(x-y)×(xy)/(x-y)
=-x²y
x(y-x)*xy/(x-y)=-x(x-y)*xy/(x-y)=-x*xy=-x2y
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来源:学生作业学帮网 编辑:学帮网 时间:2024/05/13 19:49:49
初中分式计算:(xy-x²)·xy/x-y
(xy-x²)·xy/x-y
=x(y-x)·xy/x-y
=-x²y
解
(xy-x²)×(xy)/(x-y)
=x(y-x)×(xy)/(x-y)
=-x(x-y)×(xy)/(x-y)
=-x²y
x(y-x)*xy/(x-y)=-x(x-y)*xy/(x-y)=-x*xy=-x2y