anonymous
  • anonymous
Solve the equation attached for x :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
A. x = 8/5 B. x = -8/5 C. x = 0, 8/5 D. There are no solutions.
jim_thompson5910
  • jim_thompson5910
test each answer choice so plug in x = 8/5, what do you get?

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More answers

anonymous
  • anonymous
how do i plug it in?? in format via calc?
jim_thompson5910
  • jim_thompson5910
replace x with 8/5
jim_thompson5910
  • jim_thompson5910
and use a calculator
anonymous
  • anonymous
okay so for x=8/5 i got .76339... is that right?
jim_thompson5910
  • jim_thompson5910
on the left side?
anonymous
  • anonymous
noo i did this.. log(3)8/5... idk i feel like thats wrong tho :(
anonymous
  • anonymous
thats wrong isn't it??!! :O
jim_thompson5910
  • jim_thompson5910
yeah it looks odd
anonymous
  • anonymous
okay so how should i put it in my calc?
jim_thompson5910
  • jim_thompson5910
log(5*8/5) + log( 8/5 - 1) for the left side
anonymous
  • anonymous
=6812412374 is that right?
jim_thompson5910
  • jim_thompson5910
whoa...way too big
jim_thompson5910
  • jim_thompson5910
oh you meant 0.6812412373 right?
anonymous
  • anonymous
yeah sorry my bad!!
anonymous
  • anonymous
weird i thought i pressed the "." lol
jim_thompson5910
  • jim_thompson5910
do the same for the right side
anonymous
  • anonymous
8/5log3 ?
jim_thompson5910
  • jim_thompson5910
log( 3 * 8/5 ) = ???
anonymous
  • anonymous
ohhh okay =same as above :)
jim_thompson5910
  • jim_thompson5910
so 8/5 is a solution is -8/5 a solution??
anonymous
  • anonymous
so my answer is automatically A. x=8/5 ??
jim_thompson5910
  • jim_thompson5910
no it might be 0 or -8/5
jim_thompson5910
  • jim_thompson5910
haven't ruled them out yet
anonymous
  • anonymous
idk lemme check :) left side umm it won't even let me enter it.. it says error..
jim_thompson5910
  • jim_thompson5910
that's because the domain of log(x) is x > 0 so x = 0 and x = -8/5 aren't even defined
anonymous
  • anonymous
kk so my answer is just x=8/5 then?? A. x=8/5 is my answer right?
jim_thompson5910
  • jim_thompson5910
exactly
anonymous
  • anonymous
awesome! :) Thanks!

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