杭州交通信息网上海淳大万丽酒店:一道计算题 急用
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/29 09:25:53
(4m+n)(n-4m)(16m^2-n^2) 要步骤
(4m+n)(n-4m)(16m^2-n^2)
=(n+4m)(n-4m)(16m^2-n^2)
=(n^2-16m^2)(16m^2-n^2)
=-(n^2-16m^2)(n^2-16m^2)
=-(n^2-16m^2)^2
（4m+n)(n-4m)=(n^2-16m^2)
所以上式=-1
（4m+n)(n-4m)=(n^2-16m^2) =-1
-(n^2-16m^2)^2
(4m+n)(n-4m)(16m^2-n^2)
=(n+4m)(n-4m)(16m^2-n^2)
=(n^2-16m^2)(16m^2-n^2)
=-(n^2-16m^2)(n^2-16m^2)
=-(n^2-16m^2)^2
=-(n^4-32m^2n^2+256m^4)
=-n^4+32m^2n^2-256m^4