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x in (-oo:+oo)
x*((2*x-3)/5) = 11/2 // - 11/2
x*((2*x-3)/5)-(11/2) = 0
x*((2*x-3)/5)-11/2 = 0
(x*(2*x-3))/5-11/2 = 0
(2*x*(2*x-3))/(2*5)+(-11*5)/(2*5) = 0
2*x*(2*x-3)-11*5 = 0
4*x^2-6*x-55 = 0
4*x^2-6*x-55 = 0
4*x^2-6*x-55 = 0
DELTA = (-6)^2-(-55*4*4)
DELTA = 916
DELTA > 0
x = (916^(1/2)+6)/(2*4) or x = (6-916^(1/2))/(2*4)
x = (2*229^(1/2)+6)/8 or x = (6-2*229^(1/2))/8
(x-((6-2*229^(1/2))/8))*(x-((2*229^(1/2)+6)/8)) = 0
((x-((6-2*229^(1/2))/8))*(x-((2*229^(1/2)+6)/8)))/(2*5) = 0
((x-((6-2*229^(1/2))/8))*(x-((2*229^(1/2)+6)/8)))/(2*5) = 0 // * 2*5
(x-((6-2*229^(1/2))/8))*(x-((2*229^(1/2)+6)/8)) = 0
( x-((2*229^(1/2)+6)/8) )
x-((2*229^(1/2)+6)/8) = 0 // + (2*229^(1/2)+6)/8
x = (2*229^(1/2)+6)/8
( x-((6-2*229^(1/2))/8) )
x-((6-2*229^(1/2))/8) = 0 // + (6-2*229^(1/2))/8
x = (6-2*229^(1/2))/8
x in { (2*229^(1/2)+6)/8, (6-2*229^(1/2))/8 }
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