Tentacruel Posted October 19, 2011 Report Share Posted October 19, 2011 Solve using logarithms. 5^x + 125(5^-x)=30 So how would you solve this? [color=#ffffff]Yes, I do need help with my homework.[/color] Link to comment Share on other sites More sharing options...
Ieyasu Tokugawa Posted October 19, 2011 Report Share Posted October 19, 2011 By not cheating and asking an entire website of people who probably have no idea either Link to comment Share on other sites More sharing options...
.Nu-13 Posted October 19, 2011 Report Share Posted October 19, 2011 "Hypothetically" just gave out the fact that it's your homework. Anyways, if I were you, I'd just move my ass off the PC and solve it on my own, not ask here. I could solve it, not that I have better things to do, but let's be fair. Link to comment Share on other sites More sharing options...
Tentacruel Posted October 19, 2011 Author Report Share Posted October 19, 2011 If I could solve it, you really think I'd be resorting asking you idiots? I'm missing a step in my notes for some reason. I have the answer, but I wouldn't be able to solve it from scratch. Link to comment Share on other sites More sharing options...
Nɇvɇrmorɇ Posted October 19, 2011 Report Share Posted October 19, 2011 If we're idiots, wouldn't it be a bad idea to get answers for your math problems from us? Link to comment Share on other sites More sharing options...
Yasu Posted October 19, 2011 Report Share Posted October 19, 2011 Edit: http://www.youtube.com/watch?v=nmKePrncjXQ Link to comment Share on other sites More sharing options...
Catman25 Posted October 19, 2011 Report Share Posted October 19, 2011 {1, 2} Link to comment Share on other sites More sharing options...
Yang Xiao-Long Posted October 19, 2011 Report Share Posted October 19, 2011 [url="http://www.wolframalpha.com/"]http://www.wolframalpha.com/[/url] Link to comment Share on other sites More sharing options...
Tentacruel Posted October 19, 2011 Author Report Share Posted October 19, 2011 [quote name='Yasu' timestamp='1319054648' post='5588413'] [media]http://www.youtube.com/watch?v=nmKePrncjXQ[/media] [/quote] Much obliged bro. Link to comment Share on other sites More sharing options...
Legend Zero Posted October 19, 2011 Report Share Posted October 19, 2011 [img]http://ecx.images-amazon.com/images/I/41W142QK09L._SL500_AA300_.jpg[/img] Just to be a douche. Link to comment Share on other sites More sharing options...
Tentacruel Posted October 19, 2011 Author Report Share Posted October 19, 2011 Just so you guys know, I don't even need to turn in this homework, I just need to be able to do a problem like this on the next test. Link to comment Share on other sites More sharing options...
I-dreezyAFG Posted October 19, 2011 Report Share Posted October 19, 2011 erase/delete everything. Link to comment Share on other sites More sharing options...
Canadian Posted October 22, 2011 Report Share Posted October 22, 2011 [quote name='Tentacruel' timestamp='1319042780' post='5588184'] 5^x + 125(5^-x)=30 [/quote] 1) express left side with same base 5^x + 5^3(5^-x)=30 2) apply exponent laws to left side 5^(x+3(5^-x))=30 3) now in simple log form, apply log rules x + 3(5^-x) = log 30 4) simplify x + 3x/5 = some number 5) solve for x Your welcome. Edit: i read 125 to the power of the brackets ahaha. Well that would be ur answer if it was read like that. xD Link to comment Share on other sites More sharing options...
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