#how to solve this logarithmic equation ?
33 messages · Page 1 of 1 (latest)
Maybe use ln() on both sides and then evaluate the linear equation..
sorry, but can u show me how?
Notice:
$\ln(x^a) = aln(x)$
adonhs
Well if you use ln() on both sides you get:
$\ln(2^{x-1}) = ln(3^{2x-1})$
adonhs
after that we add (e) to both side to cancel the ln?
But why would you? You would end up with an exponential equation again
so what is the next step to solve this
Well how far are you? Did you end up with some linear equation?
Bcz i add e to both sides to cancel the ln
That's not how it works, if you use e properly on both sides you end up with:
$\e^{(x-1)ln(2)} = e^{(2x-1)ln(3)}$
adonhs
well ln(2) and ln(3) are just normal numbers right?
Right
the same way you mulitplied with 2 and 3 do the same with ln(2) and ln(3)
Then i distribute the numbers?
yea
yeah because you end up with a linear equation
the solution may look complicated because ohhhh there is ln but that's ok
Thank your very much for your time i really appreciate it
Yea i was confused