Asked by lindsay
Solve
3 log x = 1 + log (4x+5)/ log 2
3 log x = 1 + log (4x+5)/ log 2
Answers
Answered by
Steve
3 log x = 1 + log (4x+5)/ log 2
That dividing logs stuff is quite unusual for introductory log problems. I will solve
3 log x = 1 + log (4x+5) - log 2
x^3 = 10*(4x+5)/2
2x^3-40x-50 = 0
2(x-5)(x^2+5x+5) = 0
and that's easy
If you really did mean to divide the logs, then I cannot find any real roots.
That dividing logs stuff is quite unusual for introductory log problems. I will solve
3 log x = 1 + log (4x+5) - log 2
x^3 = 10*(4x+5)/2
2x^3-40x-50 = 0
2(x-5)(x^2+5x+5) = 0
and that's easy
If you really did mean to divide the logs, then I cannot find any real roots.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.