Jika a log 81 - 2 a log 27 + a log 243 = 6

alog81 - 2alog27 + alog243 = aloga^6
alog3⁴ - alog3^6 + alog3^5 = aloga^6
3⁴/3^6 x 3^5 = a^6
3^(4-6+5) = a^6
3³ = a^6
a = √3