SOLUTION: log3(x+12)+log3(x-12)=4

Question 1051420: log3(x+12)+log3(x-12)=4
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
log3(x+12)+log3(x-12)=4
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If you mean

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x^2 - 144 = 81
x^2 = 225
x = 15
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x = -15 is rejected since log(-15-12) is the log of a negative number.
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If you had mentioned that 3 was the base, someone might have done the problem sooner.

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