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x² - (penjumlahan akar)x + (perkalaian akar) = 0
p + q = - b/a = 3/2
p x q = c/a = 2
penjumlahan akar :
(2p - 1) + (2q - 1) = 2(p + q) - 2
= 2(3/2) - 2
= 1
perkalian akar :
(2p - 1)(2q - 1) = 4 x p x q - 2p - 2q + 1
= 4(2) - 2(p + q) + 1
= 8 - 2(3/2) + 1
= 8 - 3 + 1
= 6
persamaan kuadrat adalah
x² - (1) x + 6 = 0
x² - x + 6 = 0