设m^2+2m+1=0,求m^3+2m^2+2008 的值
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设m^2+2m+1=0,求m^3+2m^2+2008的值设m^2+2m+1=0,求m^3+2m^2+2008的值设m^2+2m+1=0,求m^3+2m^2+2008的值m^2+2m+1=0,(m+1)
设m^2+2m+1=0,求m^3+2m^2+2008 的值
设m^2+2m+1=0,求m^3+2m^2+2008 的值
设m^2+2m+1=0,求m^3+2m^2+2008 的值
m^2+2m+1=0,
(m+1)²=0
得 m+1=0 m=-1
所以m^3+2m^2+2008=-1+2+2008=1+2008=2009
(M+1)^2=1 所以M=-1
M^3+2M^2+2008=2009
m^2+2m+1=0
(m+1)²=0
m=-1
m^3+2m^2+2008
=1+2+2008
=2011
m^2+2m+1=0 即(m+1)^2=0 m=-1
m^3+2m^2+2008 =-1+2+2008=2009