若m平方加m减一等于零则m立方加二m平方加二千零一十五等于多少

2025-05-14 03:44:53
推荐回答(1个)
回答1:

m^2+m-1=0,所以m^2+m=1
m^3+2m^2+2012
=m^3+m^2+m^2+2012
=m(m^2+m)+m^2+2012
=m+m^2+2012
=2012+1
=2013