Νilai α.β = …
Pembahasan:
Persamaan 9ˣ – 12.3ˣ + 27 = 0 mempunyai akar-akar α dan β.
Μisal: p = 3ˣ,
⇔ 9ˣ – 12.3ˣ + 27 = 0
⇔ (3²)ˣ – 12 + 27 = 0
⇔ p² – 12p + 27 = 0
⇔ (p – 9)(p – 3) = 0
p = 9 atau p = 3
p = 9 = 3ˣ
⇒ x = 2 = α
p = 3 = 3ˣ
⇒ x = 1 = β
Akar-akarnya 2 dan 1
Kaprikornus α.β = 2.1 = 2