x^2/5-2.5x=0

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Solution for x^2/5-2.5x=0 equation: 


x in (-oo:+oo)

(x^2)/5-(2.5*x) = 0

(x^2)/5-2.5*x = 0

1/5*x^2-2.5*x = 0

DELTA = (-2.5)^2-(0*1/5*4)

DELTA = 2.5^2

DELTA = 6.25

DELTA > 0

x = ((2.5^2)^(1/2)+2.5)/(1/5*2) or x = (2.5-(2.5^2)^(1/2))/(1/5*2)

x = 25/2 or x = 0

x in { 0, 25/2 }

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