If x-3 is a factor of Xsquare - kx +12, then find the value of k. Also,find the other factor of the polynomial for this value of k.
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since x - 3 is a factor, substitute x = 3, we get
9 - 3k + 12 = 0, so k = 7. other factor is x - 4
9 - 3k + 12 = 0, so k = 7. other factor is x - 4
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