Asked by carolina
solve the equation
Ig(x+14)-Ig(x-2)=2Ig5
Ig(x+14)-Ig(x-2)=2Ig5
Answers
Answered by
Steve
2lg5 = lg(5^2)
lg[(x+14)/(x-2)] = lg25
(x+14)/(x-2) = 25
x+14 = 25x-50
24x = 64
x = 8/3
lg[(x+14)/(x-2)] = lg25
(x+14)/(x-2) = 25
x+14 = 25x-50
24x = 64
x = 8/3
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