Solve the following equation ln(x^2-8x+13)=0

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Homework Statement


Solve the following equation:
ln(x2-8x+13)=0



The Attempt at a Solution


not much luck with this one. i just learned this stuff and I am having problems with it'
Anyways, i got
ln(x2-8x+13=0
=>lnx2-ln8x+ln13=0
=>lnx2-ln8x=-ln13
=>ln(x2/8x)=-ln13
=>eln(x2/8x)=e-ln13
=>x2/8x=e-ln13

im just going to stop there cause i think I am going in the wrong direction
 
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ln(a+b)\neq ln(a)+ln(b)

But rather,

ln(ab)=ln(a)+ln(b)

Firstly, take the exponential of both sides, since e^{ln(x)}=x

But also remember that you can only take the log of a positive number, so you might need to discard a value when you solve for x.
 
Oh, ok :)
I got it! Thank you
 
No problem :smile:
 
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