(-2mn^2)/4m^2n与n^3/2mn^2是否相等,为什么
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(-2mn^2)/4m^2n与n^3/2mn^2是否相等,为什么
![(-2mn^2)/4m^2n与n^3/2mn^2是否相等,为什么](/uploads/image/z/19863722-2-2.jpg?t=%28-2mn%5E2%29%2F4m%5E2n%E4%B8%8En%5E3%2F2mn%5E2%E6%98%AF%E5%90%A6%E7%9B%B8%E7%AD%89%2C%E4%B8%BA%E4%BB%80%E4%B9%88)
(-2mn^2)/4m^2n
=-n/2m
n^3/2mn^2
=n/2m
-n/2m≠n/2m
所以,(-2mn^2)/4m^2n与n^3/2mn^2不相等.
=-n/2m
n^3/2mn^2
=n/2m
-n/2m≠n/2m
所以,(-2mn^2)/4m^2n与n^3/2mn^2不相等.
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