已知㎡+m-1=0,求m³+2㎡-2012的值 急用!
问题描述:
已知㎡+m-1=0,求m³+2㎡-2012的值 急用!
答
㎡+m-1=0
㎡+m=1
m³+2㎡-2012
=m(m²+m+m)-2012
=m(1+m)-2012
=m²+m-2012
=1-2012
=-2011