x2-1/5x-2/25=0

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Solution for x2-1/5x-2/25=0 equation: 


x in (-oo:+oo)

x^2-((1/5)*x)-(2/25) = 0

x^2+(-1/5)*x-2/25 = 0

x^2-1/5*x-2/25 = 0

DELTA = (-1/5)^2-(-2/25*1*4)

DELTA = 9/25

DELTA > 0

x = ((9/25)^(1/2)+1/5)/(1*2) or x = (1/5-(9/25)^(1/2))/(1*2)

x = 2/5 or x = -1/5

x in { -1/5, 2/5 }

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