akar akar persamaan kuadrat 2x² + Mx + 16 = 0 adalah α dan β. jika α =2β dan α, β positif maka nilai M = ....

α+β = −b/a = −Μ/2
α×β = c/a = 16/2

α = 2β
2β x β = 16/2
2β^2 = 8
β^2 = 8/2
β^2 = 4
β = 2

2β = α
2(2) = α
4 = α

4+2 = -m/2
6 = -m/2
12 = -m
m = -12