若m^2-2m=1则3m^2-6m+2012=
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若m^2-2m=1则3m^2-6m+2012=若m^2-2m=1则3m^2-6m+2012=若m^2-2m=1则3m^2-6m+2012=m^2-2m=13m^2-6m＝3(m^2-2m)=3所以3m
若m^2-2m=1则3m^2-6m+2012=
若m^2-2m=1则3m^2-6m+2012=
若m^2-2m=1则3m^2-6m+2012=
m^2-2m=1
3m^2-6m＝3(m^2-2m)=3
所以
3m^2-6m+2012
＝3＋2012
＝2015
3m^2-6m+2012
=3(m^2-2m)+2012
=3+2012
=2015