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maka ; a = 2, b = -3. c = -5
Jika α dan β adalah akar-akar persamaan kuadrat maka :
α + β = -b/a = 3/2
α.β = c/a = -5/2
Persamaan kuadrat baru yang akar-akarnya (α - 3) dan (β - 3) adalah
x² - (α - 3 + β - 3)x - (α - 3)(β -3) = 0
x² - (α + β - 6)x - (α.β - 3(α + β) + 9) = 0
x² - (3/2 - 6)x - (-5/2 - 3(3/2) + 9) = 0
x² - (3-12/2)x - (-5/2 - 9/2 + 9) = 0
x² - (3-12/2)x - (-5 - 9 + 18/2) = 0
x² - (-9/2)x - (4/2) = 0
x² + 9/2x - 2 = 0 (dikalian dengan 2)
2x² + 9x - 4 = 0
Semoga Membantu ...
maaf baru dapat isi no 11