Question

Which of the following is equivalent to the expression below? Log7 7+ log7 343

Answer 1

The first step is to remember the properties of logarithms

One of them are the addtive property:

When two logarithms have the same base and they are summing between them, their arguments can be multiplied.

$\log_a(x)+\log_a(y)=\log_a(x*y)$

Now solve your problem:

$\log_77+\log_7343=\log_7(7*343)=\log_7(2401)$