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akar akarnya
x= -2 m= 2
x= 0 m=0
x=1 m= -1
x=4 m=0
nilai m = 1 dan x = -1/2
x²+4x+2m>0
b²-4ac
(4)²-4.1.2m>0
16-8m>0
-8>-16
m<2
jadi m nya : 1
mungkin begitu, semoga benar :D