已知m²+m=1,则m³+2m²+2004=?
问题描述:
已知m²+m=1,则m³+2m²+2004=?
答
已知m²+m=1,
则m³+2m²+2004
=m(m²+m)+m²+2004
=m+m²+2004
=1+2004
=2005