Given f(x)=x2−kx+6x−2f(x) = \frac{x^2 - kx + 6}{x-2}f(x)=x−2x2−kx+6, find kkk such that the numerator is divisible by the denominator.
k=5k=5k=5
k=3k=3k=3
k=4k=4k=4
k=6k=6k=6