Ask your own question, for FREE!
Mathematics 48 Online
OpenStudy (anonymous):

e^2x=e^x^2-8

zepdrix (zepdrix):

Hey Marie :)\[\Large\rm e^{\color{orangered}{2x}}=e^{\color{orangered}{x^2-8}}\]Notice, that since our bases are the same,

zepdrix (zepdrix):

our exponents will be the same also,\[\Large\rm \color{orangered}{2x=x^2-8}\]

zepdrix (zepdrix):

So you have a quadratic in x. Do you know how to solve it from there? :)

zepdrix (zepdrix):

@mariela98

OpenStudy (jhannybean):

\[e^{2x} = e^{x^2 -8}\]Raise both sides by \(\log_e\)\[\log_e (e^{2x})=\log_e (e^{x^2-8})\]\[2x = x^2 - 8\]solve the quadratic :) \[x^2-2x-8=0\]

OpenStudy (anonymous):

thank you both :)

OpenStudy (jhannybean):

did you find an answer? :o

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!