设m2+m-1=0,则m3+2m2+2010=______.
人气:190 ℃ 时间:2020-08-09 03:58:57
解答
∵m2+m-1=0,①
∴①×m得,m3+m2-m=0,②
∴①+②得,m3+2m2-1=0,
即m3+2m2=1,
则m3+2m2+2010=1+2010=2011.
故答案为2011.
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