5x+x2-3=16/2

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Solution for 5x+x2-3=16/2 equation: 


x in (-oo:+oo)

x^2+5*x-3 = 16/2 // - 16/2

x^2+5*x-(16/2)-3 = 0

x^2+5*x-8-3 = 0

x^2+5*x-11 = 0

DELTA = 5^2-(-11*1*4)

DELTA = 69

DELTA > 0

x = (69^(1/2)-5)/(1*2) or x = (-69^(1/2)-5)/(1*2)

x = (69^(1/2)-5)/2 or x = (-(69^(1/2)+5))/2

x in { (-(69^(1/2)+5))/2, (69^(1/2)-5)/2 }

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