SOLUTION: 10g base 4x+log base 4(x+1)=log base 4(20)

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Question 441388: 10g base 4x+log base 4(x+1)=log base 4(20)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
1og base4(x) + log base4(x+1) = log base4(20)
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log4[x(x+1)] = log4(20)
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x^2+x-20 = 0
(x+5)(x-4) = 0
Positive solution:
x = 4
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Cheers,
Stan H.