5/2x^2+5x-9

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Solution for 5/2x^2+5x-9 equation: 


x in (-oo:+oo)

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

5/2*x^2+5*x-9 = 0

DELTA = 5^2-(-9*5/2*4)

DELTA = 115

DELTA > 0

x = (115^(1/2)-5)/(2*5/2) or x = (-115^(1/2)-5)/(2*5/2)

x = (115^(1/2)-5)/5 or x = (-(115^(1/2)+5))/5

x in { (-(115^(1/2)+5))/5, (115^(1/2)-5)/5 }

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