We are given Logarithmic equations.
We need to find the equation which illustrates the product rule.
We know, the product rule of Logarithms is:
[tex]log_b (mn) = log_b(m) + log_b(n)[/tex].
According to the product rule of Logarithms, we need to separate logs by plus sign.
In the given options only 4th option logs are separated by plus sign.
[tex]log_2(4x) = log_2\ 4+log_2\ x[/tex].
Therefore, correct option is 4th option.
