please bantu dongg..
Matematika
FinkiIqbaliani
Pertanyaan
please bantu dongg..
2 Jawaban
-
1. Jawaban bapakdr
^(6x-5)log 16 = ^5log 4
ruas kanan agar sama dikuadratka
^(6x-5)log 16 = ^5²log 4²
^(6x-5)log 16 = ^25log 16
itukan udah sama 16 tinggal atas nya diselesaikan
6x - 5 = 25
6x = 30
x = 30/6
x = 5 -
2. Jawaban DB45
persamaan logaritma
⁶ˣ⁻⁵log 16 = ⁵log 4
log 16/ log(6x-5) = log 4/ log 5
log(6x-5)/log 5 = log 16/log 4
⁵log (6x - 5) = ⁴log 16 = ⁴log 4² = 2
⁵log (6x - 5)= 2 ---> ᵃlog b = x --> b = aˣ
6x - 5 = 5²
6x = 25 + 5
x = 5