-2mn^2/4m^2n与- n^3/2mn^2 约分
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-2mn^2/4m^2n与- n^3/2mn^2 约分
![-2mn^2/4m^2n与- n^3/2mn^2 约分](/uploads/image/z/19863721-1-1.jpg?t=-2mn%5E2%2F4m%5E2n%E4%B8%8E-+n%5E3%2F2mn%5E2+%E7%BA%A6%E5%88%86)
-2mn^2/4m^2n
=-n/2m
-n^3/2mn^2
=-n/2m
(-2mn^2/4m^2n)/(-n^3/2mn^2)
=(-n/2m)/(-n/2m)
=1
=-n/2m
-n^3/2mn^2
=-n/2m
(-2mn^2/4m^2n)/(-n^3/2mn^2)
=(-n/2m)/(-n/2m)
=1
已知|m-n-2|与(mn-1)^互为相反数,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
3(m^2n+mn)-4(mn-2m^2n)+mn.
已知m-n=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2n)-(m+4n+mn)的值
已知m-n=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值.
已知m-n=2,mn=1,求多项式(2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=3,mn=-3,求(-m-4n-mn)-(2mn-2m-3n)-(3mn+2n-2m)的值
若m-n=4,mn=-1求(9-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)
若m-n=4,mn=-1,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)的值
分式约分m^2-m^2/m^2+3mn+2n^2
3(m^2+mn)-4(mn-2m^2n)+mn