I've been stuck on this inequality: [(x-9)/(x^3)1/(x+9)]<0 The solution of this inequality consists one or more of the following intervals: (-infinity, A), (A,B), (B,C), and (C, infinity) where A<B<C Find A, B and C
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[(x-9)/(x^3)1/(x+9)]<0 Here is a start: Find when the equality equals 0 Looking at the equation there are three ways you could get 0 or undefined: when (x-9) = 0, x=9 when (x^3)1 = 0, x=0 and when (x+9) = 0, x=-9
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