3=x^2/1-x

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Solution for 3=x^2/1-x equation: 


x in (-oo:+oo)

3 = (x^2)/1-x // - (x^2)/1-x

x-((x^2)/1)+3 = 0

x-x^2+3 = 0

x-x^2+3 = 0

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