jika 2log5 = a maka nilai 16log125

2'log5 = a

16'log125
2^4'log5^3

3/4* 2'log5
3/4 a

Jika bingung.. Baca baca sifat sifat logaritma.. Di buku ada.. Di google banyakk.. Semangat dah pak.. Jangan malas

Materi Logaritma
[tex] ^{16} \log 125 = ^{2^{4}} \log 5^3 \\ = \frac{3}{4} ^2 \log 5 = \frac{3a}{4} [/tex]