Question 684350
16-24x-9x^2 
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Assuming you want to solve this Quadratic,
use the Quadratic Formula:
a = -9, b = -24, c = 16
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x = [24 +- sqrt(24^2 - 4*(-9)(16)]/(-18)
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x = [24 +- sqrt(1152)]/-18
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x = [24 +- 33.94]/(-18)
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x = 57.94/-18 or x = 
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x = -3.22... or x = 0.55...
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Cheers,
Stan H.
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