Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

lnx-5x=0 find x

OpenStudy (anonymous):

is it like ln(x-5x)=0 or .....

OpenStudy (anonymous):

hello tell me to understand

OpenStudy (anonymous):

Go to wolframalpha.com and ask the question.

OpenStudy (anonymous):

Mom! There's evil in my closet! EVIIIILLL!!!

OpenStudy (anonymous):

any way x=\[e^{5x}\]

OpenStudy (anonymous):

you have one variable but in two side with exponential so wolframalpha.com canot solve it hhhhhhh

OpenStudy (anonymous):

the solution is no solution

OpenStudy (anonymous):

no...

OpenStudy (anonymous):

you cant say x(1-5) cause the x with ln and -5x is alone so you can't say like ln x-5x=0 ln x(1-5) = 0 ln -4x= 0 -4x = e^0 -4x = 1 x = -1/4

OpenStudy (anonymous):

lnx = 5x

OpenStudy (anonymous):

so x = e^(5x) it don't have any solution

OpenStudy (anonymous):

when we say x = e^(5x) so we need x= number that make the two sides be equal there is no any number to this

OpenStudy (anonymous):

until if we derive it be 1=5e^(5x)is critical point so .........

OpenStudy (tkhunny):

That is not the right equation. Please think about the Domain. \(f(x) = \ln(x) - 5x\) Domain \(x > 0\) \(g(x) = e^{5x} - x\) Domain \(x \in \mathbb{R}\) Neither has a solution, f(x) = 0 or g(x) = 0.

OpenStudy (anonymous):

but how much ln (0) =

OpenStudy (tkhunny):

\(\ln(0)\) is not a number.

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!