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If x = 3 is one root of the quadratic equation x^2 - 2kx - 6 =0, then find the value of k.

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If x = 3 is one root of the quadratic equation x2 - 2kx - 6 =0, then find the value of k.

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Let p(x) = x2 - 2kx - 6 =0

x = 3 is one root of the quadratic equation

Remainder = p(3) = 0

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