4/5x^2-1/4x=0

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Solution for 4/5x^2-1/4x=0 equation: 


x in (-oo:+oo)

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

(4/5)*x^2+(-1/4)*x = 0

4/5*x^2-1/4*x = 0

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

DELTA = 1/16

DELTA > 0

x = ((1/16)^(1/2)+1/4)/(4/5*2) or x = (1/4-(1/16)^(1/2))/(4/5*2)

x = 5/16 or x = 0

x in { 0, 5/16 }

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