Question

Himpunan penyelesaian dari persamaan log (1 - 3x) =2

Answer 1

Log (1 - 3x) = 2
log (1 - 3x) = log (10²)

1 - 3x = 10²
1 - 3x = 100
-3x = 100 - 1
-3x = 99
3x = -99
x = -99/3
x = -33

Answer 2

Log(1-3x)= 2
log (1-3x)= log 100
1-3x= 100
-3x=99
x= -33