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a = 6
b = -2
c = 3
Hasil kali akar akar
= c/a
= 3/6
= 1/2
Jawaban: C
9. mx² + (m - 5)x - 20 = 0
a = m
b = m - 5
c = -20
Syarat akar berlawanan:
b = 0
m - 5 = 0
m = 5
Jawaban: B