12=x^2/1.6-x

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Solution for 12=x^2/1.6-x equation: 


x in (-oo:+oo)

12 = (x^2)/1.6-x // - (x^2)/1.6-x

x-((x^2)/1.6)+12 = 0

x-0.625*x^2+12 = 0

x-0.625*x^2+12 = 0

DELTA = 1^2-(-0.625*4*12)

DELTA = 31

DELTA > 0

x = (31^(1/2)-1)/(-0.625*2) or x = (-31^(1/2)-1)/(-0.625*2)

x = -0.8*(31^(1/2)-1) or x = 0.8*(31^(1/2)+1)

x in { -0.8*(31^(1/2)-1), 0.8*(31^(1/2)+1) }

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