``` wu :: forums (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi) riddles >> medium >> Math problem that came to me in a dream (Message started by: marsh8472 on Jun 4th, 2014, 9:30pm) ``` Title: Math problem that came to me in a dream Post by marsh8472 on Jun 4th, 2014, 9:30pm I was dreaming about a math class I was in.  The professor gave us this problem:3^2.5x + 3^3.3x = 18Traditional log rules don't seem to apply to simply this.  I know the answer is about 0.67600464 but how would you go about finding the precise answer? Title: Re: Math problem that came to me in a dream Post by towr on Jun 4th, 2014, 10:39pm I don't think there is a precise answer using simple function/operators. Title: Re: Math problem that came to me in a dream Post by dudiobugtron on Jun 5th, 2014, 2:56pm I think if there were a simple way of manipulating Ax + Bx = C, people would have solved Fermat's last theorem a lot sooner! :) Title: Re: Math problem that came to me in a dream Post by BMAD on Jun 5th, 2014, 7:25pm Not sure of this is what you mean but:3^2.5x + 3^3.3x =18U = 3^2.5(3^(2.5))^x) + (3^(2.5)^1.32x) =18U^x + U^1.32x = 18R = U^xR + R^1.32 = 18R = 6.4023655 (aprox)U^x = 6.4023655(3^2.5)^x = 6.40236553^2.5x=6.4023655X = .676 Powered by YaBB 1 Gold - SP 1.4! Forum software copyright © 2000-2004 Yet another Bulletin Board