Evaluate : log 5 + log 8 - 2 log 2

Evaluating the expression, ⇒ log 5 + log 8 - 2 log 2 ⇒ log 5 + log 8 - log 2 2 ⇒ log ⇒ log ⇒ log 10 ⇒ 1. Hence, log 5 + log 8 - 2 log 2 = 1.

Express the following in a form free from logarithm :
2 log x + 3 log y = log a