3 log 5 + log 8 – log 40
Jawaban Terkonfirmasi
3 log 5 + log 8 – log 40 = log 5³ + log 8 – log 40
= log (5³ x 8 / 40)
= log (125 x 8 / 40)
= log ( 1000/40 )
3 log 5 + log 8 – log 40 = log 25 = 2 log 5