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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x-14 = (3/4)*x // - (3/4)*x
2/x-((3/4)*x)-14 = 0
(-3/4)*x+2/x-14 = 0
2*x^-1-3/4*x^1-14*x^0 = 0
(2*x^0-3/4*x^2-14*x^1)/(x^1) = 0 // * x^2
x^1*(2*x^0-3/4*x^2-14*x^1) = 0
x^1
(-3/4)*x^2-14*x+2 = 0
(-3/4)*x^2-14*x+2 = 0
DELTA = (-14)^2-(2*4*(-3/4))
DELTA = 202
DELTA > 0
x = (202^(1/2)+14)/(2*(-3/4)) or x = (14-202^(1/2))/(2*(-3/4))
x = -2/3*(202^(1/2)+14) or x = -2/3*(14-202^(1/2))
x in { -2/3*(202^(1/2)+14), -2/3*(14-202^(1/2))}
x in { -2/3*(202^(1/2)+14), -2/3*(14-202^(1/2)) }
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