SOLUTION: -4 n( n+ 2) = 3(n-4)

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Question 677970: -4 n( n+ 2) = 3(n-4)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-4n( n+ 2) = 3(n-4)
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-4n^2 - 8n = 3n-12
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-4n^2 - 11n + 12 = 0
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4n^2 + 11n - 12 = 0
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Use the Quadratic Formula:
n = [-11 +- sqrt(121 - 4*4*-12)]/8
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n = [-11 +- sqrt(204)]/8
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n = [-11 +- 2sqrt(51)]/8
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Cheers,
Stan H.