网址:http://m.1010jiajiao.com/timu_id_1264791[举报]
A.x2+x+1=0 B.2x2-3x+5=0
C.x2+(1+)x+=0 D.x2+6x+7=0
下列方程中适合用分解因式法解的是
x2+x+1=0
2x2-3x+5=0
x2+x=0
x2+6x+7=0