m²+3m+3=1等于多少
问题描述:
m²+3m+3=1等于多少
答
m²+3m+2=0
(m+1)(m+2)=0
m=-1 m=-2
m²+3m+3=1等于多少
m²+3m+2=0
(m+1)(m+2)=0
m=-1 m=-2