If one root of the quadratic equation $x^{2}\, +\, 6x\, +\, k\, =\, 0$ is $h\, +\, 2\sqrt6$, find $h$.
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If one root of the quadratic equation $x^{2}\, +\, 6x\, +\, k\, =\, 0$ is $h\, +\, 2\sqrt6$, find $h$.