This algebra 2 video tutorial provides a basic introduction of logarithms. It explains the process of evaluating logarithmic expressions without a calculator. Examples

Since we want to transform the left side into a single logarithmic equation, we should use

\log _2(x+1)=\log _3(27) \ln (x+2)-\ln (x+1)=1 \ln (x)+\ln (x-1)=\ln (3x+12) 4+\log _3(7x)=10 \ln (10)-\ln (7-x)=\ln (x) \log _2(x^2-6x)=3+\log _2(1-x)

Get StartedA logarithm is a power to which a number must be raised to get another number. There are some basic formulas which are required to Solve Logarithm Questions quickly. Logarithm Formulas: log x X= 1 log a 1= 0 log a x = \frac {1} {log_x a} \

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Before You Begin: Learn to Express a Logarithmic Equation ExponentiallyKnow the logarithm definition. Before you can solve logarithms, you need to unIf and only if: bNote that b is the base of the logarithm. It must also be true that: See more

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