已知m^2+m-1=0,求m^3+2m^2+2013的值

2025-04-13 14:46:00
推荐回答(1个)
回答1:

m²+m-1=0
则m²+m=1
所以m³+2m²+2013
=m³+m²+m²+2013
=m(m²+m)+m²+2013
=m+m²+2013
=1+2013
=2014