7,7=x^2/0,5-x

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Solution for 7,7=x^2/0,5-x equation: 


x in (-oo:+oo)

7.7 = (x^2)/0.5-x // - (x^2)/0.5-x

x-((x^2)/0.5)+7.7 = 0

x-2*x^2+7.7 = 0

x-2*x^2+7.7 = 0

DELTA = 1^2-(-2*4*7.7)

DELTA = 62.6

DELTA > 0

x = (62.6^(1/2)-1)/(-2*2) or x = (-62.6^(1/2)-1)/(-2*2)

x = (62.6^(1/2)-1)/(-4) or x = (62.6^(1/2)+1)/4

x in { (62.6^(1/2)-1)/(-4), (62.6^(1/2)+1)/4 }

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