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x in (-oo:+oo)
x*((8*x^2-(10*x)+1)/2) = 0
x*((8*x^2-10*x+1)/2) = 0
(x*(8*x^2-10*x+1))/2 = 0
8*x^2-10*x+1 = 0
8*x^2-10*x+1 = 0
DELTA = (-10)^2-(1*4*8)
DELTA = 68
DELTA > 0
x = (68^(1/2)+10)/(2*8) or x = (10-68^(1/2))/(2*8)
x = (2*17^(1/2)+10)/16 or x = (10-2*17^(1/2))/16
(x-((10-2*17^(1/2))/16))*(x-((2*17^(1/2)+10)/16)) = 0
(x*(x-((10-2*17^(1/2))/16))*(x-((2*17^(1/2)+10)/16)))/2 = 0
( x-((10-2*17^(1/2))/16) )
x-((10-2*17^(1/2))/16) = 0 // + (10-2*17^(1/2))/16
x = (10-2*17^(1/2))/16
( x-((2*17^(1/2)+10)/16) )
x-((2*17^(1/2)+10)/16) = 0 // + (2*17^(1/2)+10)/16
x = (2*17^(1/2)+10)/16
( x )
x = 0
x in { (10-2*17^(1/2))/16, (2*17^(1/2)+10)/16, 0 }
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