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D( x )
2*x-5 = 0
2*x-5 = 0
2*x-5 = 0
2*x-5 = 0 // + 5
2*x = 5 // : 2
x = 5/2
x in (-oo:5/2) U (5/2:+oo)
4*x-((11/(2*x-5))*(x-3)) = 1 // - 1
4*x-((11/(2*x-5))*(x-3))-1 = 0
4*x-11*(x-3)*(2*x-5)^-1-1 = 0
(-11*(x-3))/(2*x-5)+4*x-1 = 0
(-11*(x-3))/(2*x-5)+(4*x*(2*x-5))/(2*x-5)+(-1*(2*x-5))/(2*x-5) = 0
4*x*(2*x-5)-11*(x-3)-1*(2*x-5) = 0
8*x^2-31*x-2*x+5+33 = 0
8*x^2-33*x+38 = 0
8*x^2-33*x+38 = 0
8*x^2-33*x+38 = 0
DELTA = (-33)^2-(4*8*38)
DELTA = -127
DELTA < 0
1 = 0
1/(2*x-5) = 0
1/(2*x-5) = 0 // * 2*x-5
1 = 0
x belongs to the empty set
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