2log 24 +3log 81 - 2log 3

Bab Logaritma
Matematika SMA Kelas X

²log 24 + ³log 81 - ²log 3
= ²log (24 : 3) + ³log 3⁴
= ²log 8 + 4
= ²log 2³ + 4
= 3 + 4
= 7

=2log (3×2^3) + 3log (3^4) - 2log 3
=2log 3 + 2log (2^3) + 4 (3log 3) - 2log 3
=2log 3 - 2log 3 + 3 (2log 2) + 4 (3log 3)
=3 + 4
=7