设m^2+m-2=0,求m^3+3m^2+2000的值

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设m^2+m-2=0,求m^3+3m^2+2000的值
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设m^2+m-2=0,求m^3+3m^2+2000的值
设m^2+m-2=0,求m^3+3m^2+2000的值

设m^2+m-2=0,求m^3+3m^2+2000的值
m^2+m-2=0
m^2+m=2

m^3+3m^2+2000
=m^3+m^2+2m^2+2000
=2m+2m^2+2000
=4+2000
=2004