x^2/0.2-x

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Solution for x^2/0.2-x equation: 


x in (-oo:+oo)

(x^2)/0.2-x = 0

5*x^2-x = 0

DELTA = (-1)^2-(0*4*5)

DELTA = 1

DELTA > 0

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

x = 1/5 or x = 0

x in { 0, 1/5 }

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