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Question 513267: solve f(x)=-1/2x²+3x-5/4
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! f(x) = -1/2x²+3x-5/4
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a = -1/2 ; b = 3 ; c = -5/4
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Quadratic Formula:
x = [-3 +- sqrt(9 - 4*(-1/2)(-5/4))]/-1
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x = [-3 +- sqrt(9-2.5)]/-1
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x = [-3 +- sqrt(6.5)]/-1
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x = (-3 +2.55]/-1 = +0.45
OR
x = (-3 - 2.55)/-1 = +5.55
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Cheers,
Stan H.
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