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D( x )
x^2 = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
(5*x)/(x^2)-((49/8)*x)-((24/8)*x)+56 = 0
(-49/8)*x-3*x+(5*x)/(x^2)+56 = 0
5*x^-1-73/8*x^1+56*x^0 = 0
(56*x^1-73/8*x^2+5*x^0)/(x^1) = 0 // * x^2
x^1*(56*x^1-73/8*x^2+5*x^0) = 0
x^1
(-73/8)*x^2+56*x+5 = 0
(-73/8)*x^2+56*x+5 = 0
DELTA = 56^2-(4*5*(-73/8))
DELTA = 6637/2
DELTA > 0
x = ((6637/2)^(1/2)-56)/(2*(-73/8)) or x = (-(6637/2)^(1/2)-56)/(2*(-73/8))
x = -4/73*((6637/2)^(1/2)-56) or x = 4/73*((6637/2)^(1/2)+56)
x in { -4/73*((6637/2)^(1/2)-56), 4/73*((6637/2)^(1/2)+56)}
x in { -4/73*((6637/2)^(1/2)-56), 4/73*((6637/2)^(1/2)+56) }
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