1. 2ln(3x) = 8 2. Logx + log (x + 15) = 2 3. Ln (x - 4) - ln (x + 1) = ln 6
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Originally Posted by garbles 1. 2ln(3x) = 8
Thanks just need the last 2
Originally Posted by garbles 3. Ln (x - 4) - ln (x + 1) = ln 6
Originally Posted by garbles 2. Logx + log (x + 15) = 2 What is a basis of these logarithms?
Originally Posted by DeMath What is a basis these logarithms? It doesn't say
Originally Posted by DeMath What is a basis these logarithms? I'd just assume base 10. So, Thus, and becomes the equation you have to solve for. You will want to keep the non-negative answer.
Originally Posted by garbles 2. x=5 not -20 since is undefined
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