Can you help me with the following logarithm and
explain how you came to the answer?:
log5x = -2
You must memorize how to rewrite a log equation as an exponential
equation and vice-versa:
Rule:
The logarithm equation
logba = c
and the exponential equation
bc = a
are equivalent and you can always
write one for the other.
Using that rule:
log5x = -2
can be rewritten as
5-2 = x
Then use the rule for negative exponente
to write as and then
write that as .
That's the answer
x =
Edwin
