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

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


x in (-oo:+oo)

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

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

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

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

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

DELTA = 36/25

DELTA > 0

x = ((36/25)^(1/2)+2)/(4/5*2) or x = (2-(36/25)^(1/2))/(4/5*2)

x = 2 or x = 1/2

x in { 1/2, 2 }

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