5m^3+9m^2+9m+7
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5m^3+9m^2+9m+75m^3+9m^2+9m+75m^3+9m^2+9m+75m^3+9m^2+9m+7＝(m+1)(5m^2+4m+5)+2因为5m^2+4m+5>=21/2,所以(m+1)
5m^3+9m^2+9m+7
5m^3+9m^2+9m+7
5m^3+9m^2+9m+7
5m^3+9m^2+9m+7＝(m+1)(5m^2+4m+5)+2
因为5m^2+4m+5>=21/2,所以
(m+1)(5m^2+4m+5)+2
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求导 算出零点 再画图
m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值
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m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m
2m+3m+5m+7m+9m+…+2003m+2005m+2007m
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5m^3+9m^2+9m+7
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