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Hey guys,     After working with high school and college students in algebra 1 & 2,  i came across quite a few students who found logarithms hard to work with . Most of the  students failed to retain some important log based rules which were essential to be effective at problem solving.   Here's a list of a few rules :   logab = x could be written as  ax = b. Let me work a couple of examples to show how this rule works   log39 = 2  By using the rule that i talked about above can be written as 3^2 = 9 where a=3, x=2 and b = 9.      loga10 - loga5  can be rewritten in the form loga(10/5)  which is the same as loga2. As long as the bases are equal to one another we can divide when there is a subtraction taking place using log.   When it comes to addition we need to add logarithms that have the same base.     Also... read more

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