Question

LOGARITMA PAKE CARA TOLONG DIBANTU

Answer 1

Hmm gini gue kasih tau langsung dulu, jadi:
(x+2)(x-1) = 4

cari deh x nya berapa aja.

tapi yg penting kamu hrs tau tentang sifat-sifat logaritma. ayo dipelajari lg

Answer 2

²log (x-2) + ²log (x+1) = 2
⇔²log (x-2) + ²log (x+1) = ²log 2²
⇔ ²log (x-2)(x+1) = ²log 2²
⇔  (x-2) (x+1) = 2²
⇔ x² + x - 2x -2 = 4
⇔ x² - x -6 = 0
⇔ (x + 2)(x - 1)
⇔ x=-2√ x = 1