tolong bantu gw jawab pertanyaan ini

Kelas 10 Matematika
Bab Logaritma

(²log (1/8) - ^5log √7 . ^7log (1/5))/(^3log 9√3)
= (²log 2^-3 - ^5log (1/5) . ^7log √7)/(^3log 3^(5/2))
= (-3 - (-1) . 1/2) / (5/2)
= (2/5) . (-5/2)
= -1