若m^2+m=-1,则m^4+2m^3-3m^2-4m+3的值为
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![若m^2+m=-1,则m^4+2m^3-3m^2-4m+3的值为](/uploads/image/z/3612136-40-6.jpg?t=%E8%8B%A5m%5E2%2Bm%3D-1%2C%E5%88%99m%5E4%2B2m%5E3-3m%5E2-4m%2B3%E7%9A%84%E5%80%BC%E4%B8%BA)
若m^2+m=-1,则m^4+2m^3-3m^2-4m+3的值为
若m^2+m=-1,则m^4+2m^3-3m^2-4m+3的值为
若m^2+m=-1,则m^4+2m^3-3m^2-4m+3的值为
m^4+2m^3-3m^2-4m+3=m^2(m^2+m)+m^3-3(m^2+m)-m+3
=m^3-m^2+6-m=m(m^2+m)-2m^2-m+6=-2m^2-2m-6=-2*(m^2+m)-6=2-6=-4