作业帮设m²+n-1=0,求m³+2m²+2004的值
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设m²+n-1=0,求m³+2m²+2004的值
设m²+n-1=0,求m³+2m²+2004的值
设m²+n-1=0,求m³+2m²+2004的值
条件里面的n是m吧?得到m2+m=1,m3+2m2+2004=m(m2+m)+m2+2004=m+m2+2004=2005