-1/2*32x^2+40x+80=104.64

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Solution for -1/2*32x^2+40x+80=104.64 equation: 


x in (-oo:+oo)

32*(-1/2)*x^2+40*x+80 = 104.64 // - 104.64

32*(-1/2)*x^2+40*x-104.64+80 = 0

40*x-16*x^2-24.64 = 0

DELTA = 40^2-(-24.64*(-16)*4)

DELTA = 23.04

DELTA > 0

x = (23.04^(1/2)-40)/(-16*2) or x = (-23.04^(1/2)-40)/(-16*2)

x = (23.04^(1/2)-40)/(-32) or x = (23.04^(1/2)+40)/32

x in { (23.04^(1/2)-40)/(-32), (23.04^(1/2)+40)/32 }

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