5x^2-13x-6/9-x^2

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Solution for 5x^2-13x-6/9-x^2 equation: 


x in (-oo:+oo)

5*x^2-x^2-(13*x)-(6/9) = 0

5*x^2-x^2-13*x-2/3 = 0

4*x^2-13*x-2/3 = 0

DELTA = (-13)^2-(-2/3*4*4)

DELTA = 539/3

DELTA > 0

x = ((539/3)^(1/2)+13)/(2*4) or x = (13-(539/3)^(1/2))/(2*4)

x = ((539/3)^(1/2)+13)/8 or x = (13-(539/3)^(1/2))/8

x in { (13-(539/3)^(1/2))/8, ((539/3)^(1/2)+13)/8 }

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