j'ai besoin d'aide

kayfa nounakich kiyam el wassit "m" wa iyjad icharat houlou el moaadala )


         m-1)x² +2(m+1)x +m=0

(m-1)x²+2(m+1)m
D=[2(m+1)²-4(m-1)m]
D=4m²+4+8m-4m²+4m
D=12m+4
جدول الاشارة:
D=0 <=12m+4=0
m=-1/3
ومنه جدول الاشارة عند -1/3 معدوم و - قبلها سالب /بعدها موجب

its easy

do you want some help i can help you if you want

yes please but in other reson