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Verified answer
Materi : Persamaan Kuadratα dan β adalah akar-akar pers. kuadrat
5x² - 3x + 1 = 0
maka
a = 5
b = -3
c = 1
α + β = -b/2a = 3/5
αβ = c/a = 1/5
5α + 5β
= 5(α + β)
= 5(3/5)
= 3
5α . 5β
= 25(αβ)
= 25(1/5)
= 5
jadi pers. kuadrat yang baru adalah
x² - 3x + 5 = 0