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Questions  >>  Olympiad-Math  >>  Class 10
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Q)

If the zeroes of the polynomial $f(x)=x^3-12x^2+39x+k$ are in A.P then the value of $k$ is _____

$\begin{array}{1 1}(A) \;28\\(B)\;-28\\(C)\;\pm 28\\(D)\;\text{None of these}\end{array} $

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