4/5x^2=16/25x

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Solution for 4/5x^2=16/25x equation: 


x in (-oo:+oo)

(4/5)*x^2 = (16/25)*x // - (16/25)*x

(4/5)*x^2-((16/25)*x) = 0

(4/5)*x^2+(-16/25)*x = 0

4/5*x^2-16/25*x = 0

DELTA = (-16/25)^2-(0*4/5*4)

DELTA = 256/625

DELTA > 0

x = ((256/625)^(1/2)+16/25)/(4/5*2) or x = (16/25-(256/625)^(1/2))/(4/5*2)

x = 4/5 or x = 0

x in { 0, 4/5 }

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