This formula can help us find the solutions to questions like:
2x = 10 or log2(10) = x
logbx = logax / logab
To get the answer using your calculator quickly, assume that a = 10.
This is because all the log buttons on our calculators are already based 10.
Using the formula we get:
x = log10 / log2
x = 3.322
Knowing this formula can be very useful, because in many questions it
Acts as a safety net if other methods fail.