若(x+m)(x+2)=x2-6x+n,则m=_,n=_.
问题描述:
若(x+m)(x+2)=x2-6x+n,则m=______,n=______.
答
(x+m)(x+2)=x2+(m+2)x+2m=x2-6x+n,
得到m+2=-6,2m=n,
解得:m=-8,n=-16.
故答案为:-8;-16.