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D( x )
e^4 = 0
e^4 = 0
e^4 = 0
e^4 = 0
x belongs to the empty set
x in (-oo:+oo)
(e^3*x)/(e^4) = 17 // - 17
(e^3*x)/(e^4)-17 = 0
e^-1*x-17 = 0 // + 17
e^-1*x = 17 // : e^-1
x = 17/(e^-1)
x = 17/(e^-1)
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