Log Properties Change of Base

Use the change of base property \log_b\left(x\right)\ =\ \frac{\log_a\left(x\right)}{\log_a\left(b\right)}\ to write \log_2\left(16\right)\ with the common base

Use your calculator (and change of base) to evaluate the logarithm:

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• B

• C

• D

Use your calculator (and change of base) to evaluate the logarithm:

• A

• B

• C

• D

Solve the equation.

• A

• B

• C

• D

Write as one logarithm. Simplify, if possible.
log₅125 - log₅25

• 1

• 0

• 5

• -1