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x₁ = a
x₂ = b
x₁+x₂ = -b/a = -m/2
a + b = -m/2
x₁.x₂ = c/a = 16/2 = 8
a.b = 8
a= 2b. --> a.b = 8
2b.b = 8
b² = 4
b = 2
a = 4
a+b = -m/2
4+2 = -m/2
6 = -m/2
-m = 12
m = -12
check sebelum menjadi jawaban akhir
semoga membantu
(2x + 4 )(x + 4) =0
x = -2 , x = -4
m = 8