x -3 is a factor of polynomial x ^3- 3 X^2 + 3 X + k find the value of k
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Since the first two terms
x³-3x²=x²(x-3)
has x-3, it is required that 3x+k has x-3 as a factor.
So, 3(x-3)=3x-9 is equal to 3x+k
Therefore k=-9
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