Posted by Ladybug on Sunday, November 25, 2012 at 3:29pm.
solve the following exponential equation. exact answers only.
19x 2x
2 = e
I hope that you understand this question. I don't and need some help please. Can you show all answers please.

college algebraI really need help!!  excuse me, Sunday, November 25, 2012 at 3:50pm
Um....where does 19x and 2x connect? Are they just separate algebraic expressions? And where does e come into play? Thanks

college algebraI really need help!!  Ladybug, Sunday, November 25, 2012 at 4:05pm
Ok, it didn't turn out right. This is the question.
2 with the 19x above the 2 = e with 2x above the e.
Hope this makes more sense now and you can help me and show me how you came about getting the answers.
Thanks!!!!

college algebraI really need help!!  Damon, Sunday, November 25, 2012 at 4:44pm
2^(19x) = e^2x ??? is that what you mean?
if so then
ln (e^2x) = 2x ln e = 2x
and
ln [ 2^(19x) ] = (19x) ln 2 = .693(19x)
so
2x = .693 (19x)
2x = .693  6.24 x
8.24 x = .693
x = .0841

college algebraI really need help!!  Ladybug, Sunday, November 25, 2012 at 6:34pm
Yes, thanks. I am not quite sure how to make some of the signs when posting my questions here. I am probably older than most and really trying to learn to post them right. Is there a place that you might can refer me to, so that I can try and learn the right signs and symbols????
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