(3/7)x^2+5x+6.25

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Solution for (3/7)x^2+5x+6.25 equation: 


x in (-oo:+oo)

(3/7)*x^2+5*x+6.25 = 0

3/7*x^2+5*x+6.25 = 0

DELTA = 5^2-(3/7*4*6.25)

DELTA = 14.2857143125

DELTA > 0

x = (14.2857143125^(1/2)-5)/(3/7*2) or x = (-14.2857143125^(1/2)-5)/(3/7*2)

x = 7/6*(14.2857143125^(1/2)-5) or x = -7/6*(14.2857143125^(1/2)+5)

x in { -7/6*(14.2857143125^(1/2)+5), 7/6*(14.2857143125^(1/2)-5) }

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