xx30的知识精选

 方程x(x+3)=0的根是                                        (...
问题详情: 方程x(x+3)=0的根是                                        (    )A.x=0  B.x=-3   C.x1=0,x2=3     D.x1=0,x2=-3【回答】D知识点:解一元二次方程题型:选...
热门标签