m^2+m-1=0
m^2+m=1
写错了吧,该是m^3+2m^2+2010吧
m^3+2m^2+2010
=m^3+m^2+m^2+2010
=m(m^2+m)+m^2+2010
=m+m^2+2010
=1+2010
=2011
设m^2+m-1=0,求m^3+2m+2010的值
m^2+m-1=0
m^2+m=1
写错了吧,该是m^3+2m^2+2010吧
m^3+2m^2+2010
=m^3+m^2+m^2+2010
=m(m^2+m)+m^2+2010
=m+m^2+2010
=1+2010
=2011