已知m²-2m-2=0,求m³+m²-8m+2004的值
问题描述:
已知m²-2m-2=0,求m³+m²-8m+2004的值
答
m³+m²-8m+2004 =m³+m²-8m-6+2010=(m+3)(m²-2m-2)+2010 =2010
已知m²-2m-2=0,求m³+m²-8m+2004的值
m³+m²-8m+2004 =m³+m²-8m-6+2010=(m+3)(m²-2m-2)+2010 =2010