iheartfood
Solve the equation attached for x :)



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iheartfood
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iheartfood
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A. x = 8/5
B. x = 8/5
C. x = 0, 8/5
D. There are no solutions.

jim_thompson5910
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test each answer choice
so plug in x = 8/5, what do you get?

iheartfood
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how do i plug it in?? in format via calc?

jim_thompson5910
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replace x with 8/5

jim_thompson5910
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and use a calculator

iheartfood
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okay so for x=8/5 i got .76339... is that right?

jim_thompson5910
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on the left side?

iheartfood
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noo i did this.. log(3)8/5... idk i feel like thats wrong tho :(

iheartfood
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thats wrong isn't it??!! :O

jim_thompson5910
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yeah it looks odd

iheartfood
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okay so how should i put it in my calc?

jim_thompson5910
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log(5*8/5) + log( 8/5  1) for the left side

iheartfood
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=6812412374
is that right?

jim_thompson5910
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whoa...way too big

jim_thompson5910
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oh you meant 0.6812412373 right?

iheartfood
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yeah sorry my bad!!

iheartfood
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weird i thought i pressed the "." lol

jim_thompson5910
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do the same for the right side

iheartfood
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8/5log3 ?

jim_thompson5910
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log( 3 * 8/5 ) = ???

iheartfood
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ohhh okay
=same as above :)

jim_thompson5910
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so 8/5 is a solution
is 8/5 a solution??

iheartfood
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so my answer is automatically A. x=8/5
??

jim_thompson5910
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no it might be 0 or 8/5

jim_thompson5910
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haven't ruled them out yet

iheartfood
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idk lemme check :)
left side
umm it won't even let me enter it.. it says error..

jim_thompson5910
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that's because the domain of log(x) is x > 0
so x = 0 and x = 8/5 aren't even defined

iheartfood
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kk so my answer is just x=8/5 then??
A. x=8/5 is my answer right?

jim_thompson5910
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exactly

iheartfood
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awesome! :) Thanks!