Minta tolong dong Gan 3 log (X-1)= log 10

3 log (x - 1) = log 10 (ingat log 10 = 1)
3 log (x-1) = 1 (ubah bil 1 dgn bentuk log bil pokok 3)
3 log (x - 1) = 3 log 3
x - 1 = 3
x = 3 + 1
x = 4

Syarat x - 1 > 0
4 - 1 > 0
3 > 0 memenuhi

Hp {4}

³log (x-1) = 1
= ³log 3
x-1 = 3
x = 4