If $\dfrac{\text{log }125}{\text{log } \dfrac{1}{5}}$ = log x, the value of x is :

1. 0.001

2. 0.01

3. 25

4. 5

If log (x - 5) + log (x + 5) = 2 log 12, the positive value of x is :

1. 5

2. 13

3. 4.8

4. 12

Express in terms of log 2 and log 3 :

log 144

Express in terms of log 2 and log 3 :

log 4.5