m^2+m-1=0m^2+m=1m^3+2m^2+2007=m(m^2+m)+m^2+2007=m+m^2+2007=1+2007=2008
m^2+m-1=0 m^2+m=1 m^3+2m^2+2007=m^3+m^2+m^2+2007 =m(m^2+m)+m^2+2007 =m+m^2+2007 =1+2007 =2008
