What is log base 5(4*7 )+log base 5 of 2 written as a single log? a. log base 5 of 21 b. log base 5 of 26 c. log base 5 of 30 d. log base 5 of 56

The answer for the exercise shown above is the last option (Option D), which is:

 D. log base 5 of 56

The explanation is show below:

 1. You have the following logarithm expresssion:

 log5(4*7 )+log5(2)

 2. By the logarithms properties, you can rewrite the logarithm expression as following:

 log5(28)(2)
 log5(56)

 3. Therefore, as you can see, the answer is the option mention before.
 

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