find the value of k, for which the polynomial x3-3x2+3x+k has 3 as its zero.
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p(3) = 0
or 33 - 3*32 + 3*3 + k = 0
or 27 - 3*9 + 9 + k = 0
or 27 - 27 + 9 + k = 0
or 9 + k = 0
or k = -9
or 33 - 3*32 + 3*3 + k = 0
or 27 - 3*9 + 9 + k = 0
or 27 - 27 + 9 + k = 0
or 9 + k = 0
or k = -9