因式分解 4n^2-(m+n)^2
问题描述:
因式分解 4n^2-(m+n)^2
答
4n^2-(m+n)^2
=[2n+(m+n)][2n-(m+n)]
=(m+3n)(n-m)
答
4n^2-(m+n)^2
=(2n+m+n)(2n-m-n)
=(3n+m)(n-m)