Jawaban:
persamaan kuadrat awal
3x² + 2x - 4 = 0 ; a = 3, b = 2, c = -4
x1 + x2 = -b/a = -2/3
x1.x2 = c/a = (-4)/3
akar-akar persamaan kuadrat baru
3x1 + 3x2 = 3(x1 + x2) = 3(-2/3) = -2
(3x1)(3x2) = 9(x1.x2) = 9((-4)/3) = -12
persamaan kuadrat baru
x² - (3x1 + 3x2)x + ((3x1)(3x2)) = 0
x² - (-2)x + (-12) = 0
x² + 2x - 12 = 0
sekian jawaban dari saya
semoga bermanfaat
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Jawaban:
persamaan kuadrat awal
3x² + 2x - 4 = 0 ; a = 3, b = 2, c = -4
x1 + x2 = -b/a = -2/3
x1.x2 = c/a = (-4)/3
akar-akar persamaan kuadrat baru
3x1 + 3x2 = 3(x1 + x2) = 3(-2/3) = -2
(3x1)(3x2) = 9(x1.x2) = 9((-4)/3) = -12
persamaan kuadrat baru
x² - (3x1 + 3x2)x + ((3x1)(3x2)) = 0
x² - (-2)x + (-12) = 0
x² + 2x - 12 = 0
sekian jawaban dari saya
semoga bermanfaat