2) What is the difference in log (x/y) and log (x) / log (y) ?

3) Explain the process for solving 4x - 2 = 20.

4) Is log520 = 4? Why or why not?

2) log (x/y) would just include x/y only, while log (x) / log (y) would have the division of log times x (together) and log times y (together).

3) First, add 2 from both sides of the equation.

4x - 2 + 2 = 20 + 2. Then you divide both sides of the equation by 2. 4x : 4 = 22 : 4.

x=22/4.

4) No, because log520=4 would be 1 ^4 = 520 in the exponential function. Therefore, it's not valid.