mohon bantuannya ya.......

[tex] {}^{2} log7 = a \\ {}^{7} log5 = b \\ \\ {}^{8} log125 = ... \\ \\ {}^{2} log7. {}^{7} log5 = {}^{2} log5 \\ a.b = {}^{2} log5 \\ \\ {}^{8} log125 = {}^{ {2}^{3} } log {5}^{3} = {}^{2} log5 \\ {}^{8} log125 = ab[/tex]