et's simplify this expression step by step.
First, we know that log a + log b = log ab. So we can apply this rule to combine the terms 64 and 5 in the expression:
log 64 + 2log 5 - 2log 40
= log (64) + log (5^2) - log (40^2)
Next, we can use the rule log a^n = n log a to simplify the expression further:
= log (64) + log (25) - log (1600)
Now, we can combine the terms using the rule log a + log b = log ab:
= log (64 * 25 / 1600)
= log (1600 / 1600)
= log 1
= 0
Therefore, the final simplified expression is 0.
Log 64 + 2log5-2log40
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