jika 2logx . 5log4=6 maka x=

Bab Logaritma
Matematika SMA Kelas X

²log x . ⁵log 4 = 6
⁵log x . ²log 4 = 6
⁵log x . ²log 2² = 6
⁵log x . 2 . ²log 2 = 6
⁵log x = 6 : 2
x = 5³
x = 125

2logx . 5log4 = 6

2logx =
6
------------
5log4

2logx =
6
------------
2log4
--------
2log5

2logx =
6
------------
2log2²
--------
2log5

2logx =
6
------------
2
--------
2log5

2logx = 3 (2log5)
2logx = 2log5³
x = 5³
x = 125

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