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Milagros Potter
Mathematics
31 May, 01:54
Log4 x + log4 (x-12) = 3
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Scott Cantrell
31 May, 02:24
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log4 (x+12) + log4x=3
log4 (x (x+12)) = 3
log4 (x^2+12x) = 3
4^3=x^2+12x
64=x^2+12x
x^2+12x-64=0
(x+16) (x-4) = 0
x=4
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