-m-m²-2的绝对值
问题描述:
-m-m²-2的绝对值
答
-m²-m-2
=-(m+1/2)²-7/4≤-7/4所以|-m-m²-2|
=m²+m+2
-m-m²-2的绝对值
-m²-m-2
=-(m+1/2)²-7/4≤-7/4所以|-m-m²-2|
=m²+m+2