anonymous
  • anonymous
Please tell me if this is right... Solve the logarithmic equation: log_4(x-18) + log_4 (x-3) = 2 log_4((x-18)(x-3)=4^2 x^2-21x+54=16 x^2-21x+38=0 (x-2)(x-19)=0 x=2, x=19 <--- Answer
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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hartnn
  • hartnn
your final answer is correct but the 2nd step will be log_4((x-18)(x-3)=2 then 3rd step x^2-21x+54=16 is correct
hartnn
  • hartnn
or your 2nd step could be log_4((x-18)(x-3)=log_4 (4^2)
anonymous
  • anonymous
yea I did that but I skipped the step on here. I wrote that on my paper.

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hartnn
  • hartnn
then you are correct
hartnn
  • hartnn
oh, wait i just realized, x=2 cannot be the answer
hartnn
  • hartnn
because that would make x-3 as negative then log (x-3) will not be defined @Fakshon

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