Pasti, kuring bisa mantuan Anjeun ngajawab persamaan kubik x^3 + 2x^2 - x - 1 = 0 maké metoda Cardano. Di dieu aya hambalan: Hambalan 1: Nempatkeun persamaan dina bentuk x^3 + px + q = 0 x^3 + 2x^2 - x - 1 = 0 bisa disusun deui salaku x^3 + 0x^2 + 2x^2 - x - 1 = 0, jadi urang boga p = 0 jeung q = -1. Hambalan 2: Substitut x = y - b/3 dina persamaan, dimana b = -p/3 b = -p/3 = 0 = 0, jadi urang boga b = 0. Substituting x = y dina persamaan, urang meunang: (y - 0) x x x x x x x x x x x x x x x x x x x x x x x x x - 0 -i) - 1 = 0 y y y y - 3 -
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