已知㎡+m-1=0,求m³+2㎡+2007的值
问题描述:
已知㎡+m-1=0,求m³+2㎡+2007的值
答
㎡+m=1
m³+2㎡+2007=m(㎡+m)+㎡+2007
=m+㎡+2007
=1+2007
=2008