x^2-(11/13)x-90/13

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Solution for x^2-(11/13)x-90/13 equation: 


x in (-oo:+oo)

x^2-((11/13)*x)-(90/13) = 0

x^2+(-11/13)*x-90/13 = 0

x^2-11/13*x-90/13 = 0

DELTA = (-11/13)^2-(-90/13*1*4)

DELTA = 4801/169

DELTA > 0

x = ((4801/169)^(1/2)+11/13)/(1*2) or x = (11/13-(4801/169)^(1/2))/(1*2)

x = ((4801/169)^(1/2)+11/13)/2 or x = (11/13-(4801/169)^(1/2))/2

x in { (11/13-(4801/169)^(1/2))/2, ((4801/169)^(1/2)+11/13)/2 }

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