X^2-4/5X0

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Solution for X^2-4/5X0 equation: 


X in (-oo:+oo)

X^2-((4/5)*X) < 0

X^2+(-4/5)*X < 0

X^2-4/5*X < 0

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

DELTA = 16/25

DELTA > 0

X = ((16/25)^(1/2)+4/5)/(1*2) or X = (4/5-(16/25)^(1/2))/(1*2)

X = 4/5 or X = 0

a = 1

a > 0

X in (0:4/5)

X in (0:4/5)

(0:4/5)

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