Question 378380
find the solutions of 
-8x^2 + 4x + 5= 0
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x = [-4 +- sqrt(16 -4*-8*5)]/(-16)
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x = [-4 +- sqrt(176)]/(-16)
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x = [-4 +- 4sqrt(11)]/(-16
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x = [1+sqrt(11)]/4 or x = [1-sqrt(11]/4
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Cheers,
Stan H.