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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
4/x = (17/8)*x+3 // - (17/8)*x+3
4/x-((17/8)*x)-3 = 0
(-17/8)*x+4/x-3 = 0
4*x^-1-17/8*x^1-3*x^0 = 0
(4*x^0-17/8*x^2-3*x^1)/(x^1) = 0 // * x^2
x^1*(4*x^0-17/8*x^2-3*x^1) = 0
x^1
(-17/8)*x^2-3*x+4 = 0
(-17/8)*x^2-3*x+4 = 0
DELTA = (-3)^2-(4*4*(-17/8))
DELTA = 43
DELTA > 0
x = (43^(1/2)+3)/(2*(-17/8)) or x = (3-43^(1/2))/(2*(-17/8))
x = -4/17*(43^(1/2)+3) or x = -4/17*(3-43^(1/2))
x in { -4/17*(43^(1/2)+3), -4/17*(3-43^(1/2))}
x in { -4/17*(43^(1/2)+3), -4/17*(3-43^(1/2)) }
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