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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
x-(1/x)-14 > 3 // - 3
x-(1/x)-14-3 > 0
x-x^-1-14-3 > 0
x-x^-1-14-3 = 0
1*x^1-1*x^-1-17*x^0 = 0
(1*x^2-17*x^1-1*x^0)/(x^1) = 0 // * x^2
x^1*(1*x^2-17*x^1-1*x^0) = 0
x^1
x^2-17*x-1 = 0
x^2-17*x-1 = 0
DELTA = (-17)^2-(-1*1*4)
DELTA = 293
DELTA > 0
x = (293^(1/2)+17)/(1*2) or x = (17-293^(1/2))/(1*2)
x = (293^(1/2)+17)/2 or x = (17-293^(1/2))/2
x in { (17-293^(1/2))/2, (293^(1/2)+17)/2}
(x-((17-293^(1/2))/2))*(x-((293^(1/2)+17)/2)) > 0
(-oo:(17-293^(1/2))/2) ((17-293^(1/2))/2:(293^(1/2)+17)/2) ((293^(1/2)+17)/2:+oo) x-((17-293^(1/2))/2) - + + x-((293^(1/2)+17)/2) - - +
x in (-oo:(17-293^(1/2))/2) U ((293^(1/2)+17)/2:+oo)
(-oo:(17-293^(1/2))/2) U ((293^(1/2)+17)/2:+oo)
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