化简(m^2-4mn+4n^2)/m^2-4n^2=

[(m+n)^2-4mn][(m-n)^2+4mn]+2(mn)^2 3(m^2n+mn)-4(mn-2m^2n)+mn.要有过程 (2m+n)(4m^2-2mn+n^2) 因式分解m^3-2m^2n+mn^2-4m^2+4mn+4m 已知m-n=4,m、n互为倒数求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4m+mn)的值 化简 (m-n)/(m+2n)+(m^2-n^2)/（m^2+4mn+4n^2） 已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值 已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值 4-m²n²+2mn 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=4,mn=-1,求（-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn）的值. 若m-n=4,mn=-1,求（-2mn+2m+3n）-（3mn+2n-2m）-（m+4n+mn） 若m-n=4,mn=-1求(9-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn) 已知m-n=4,mn=-1,求（-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-2｜与（mn-1)^互为相反数,求（-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 已知m-n=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值