x^2+x-72/24

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Solution for x^2+x-72/24 equation: 


x in (-oo:+oo)

x^2+x-(72/24) = 0

x^2+x-3 = 0

x^2+x-3 = 0

DELTA = 1^2-(-3*1*4)

DELTA = 13

DELTA > 0

x = (13^(1/2)-1)/(1*2) or x = (-13^(1/2)-1)/(1*2)

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

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

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