SOLUTION: Please help. I feel this should extremely easy, but I'm struggling. Please help. Write the expression as the logarithm of a single number or expression with a coefficient of

log(5) + log(10) - log(2) 

On the first two terms, use this rule:

Taking a log out of the addition of logs changes the
addition to multiplication:

log(5·10) - log(2)

log(50) - log(2)

On those two terms, use this rule:

Taking a log out of the subtraction of logs changes the
subtraction to division:

log

log(25)

Edwin