Hello,
Need help with solving the following log equation:
3Log(2x) = x-3
I have tried every possible method using log principles, but i am not getting the same answer as that when i use a GDC to look for the intersects. Please help.
Hello,
Need help with solving the following log equation:
3Log(2x) = x-3
I have tried every possible method using log principles, but i am not getting the same answer as that when i use a GDC to look for the intersects. Please help.
sorry you're disappointed, but the fact is that you'll not be able to solve this equation using elementary algebraic techniques.
the previous response shows a computer generated solution using the Lambert W function.
my advice to you is to get out your calculator and solve it.
graph $\displaystyle y = 3\log(2x) - (x-3)$ and look for the real zero.
I cant solve this equation by hand..?! Oh, man... Yes, when i punched it originally into my GDC and looked for the intercept i got x = 6.3 , which checks out when i replace x in the equation. But, i was under the impression it could be solved by hand, apart from taking x/y values and plotting on a graph-paper by hand and looking for the intercepts... How did the Math-Gurus do it 30years ago?? They just graphed it by hand?