answer the following questions
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P(x) = x^2 - 2kx - 6 = 0
P(3) = 3^2 -2k×3 - 6 =0
P(3) = 9 -6k - 6 = 0
= 3 - 6k = 0
= -6k = -3
= k = -3 / -6
= k = 1/2
P(3) = 3^2 -2k×3 - 6 =0
P(3) = 9 -6k - 6 = 0
= 3 - 6k = 0
= -6k = -3
= k = -3 / -6
= k = 1/2
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