Jawabanmu

2014-03-05T20:03:29+07:00
Syarat akar real D=0
D=0
b²-4ac=0
4²-4(m-1).2m=0
16-8m²-8m=0
8m²+8m-16=0
(2m-2)(m+2)=0
m=1  V m=-2
cmiwwww