已知m^2+m-1=0,求m^2+2m^2+2007的值

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 18:43:33
已知m^2+m-1=0,求m^2+2m^2+2007的值
x){}Ks㌴su m tmlqY-O$TΆ$s<[C(,bV&7DbY6yvPـ9p{-VKCpE1 ȮQn{

已知m^2+m-1=0,求m^2+2m^2+2007的值
已知m^2+m-1=0,求m^2+2m^2+2007的值

已知m^2+m-1=0,求m^2+2m^2+2007的值
m^2+m-1=0
m^2+m=1
m^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