Find kkk so that (x−3)(x - 3)(x−3) is a factor of P(x)=x2+kx−3P(x) = x^2 + kx - 3P(x)=x2+kx−3.
k=−2k = -2k=−2
k=2k = 2k=2
k=−8k = -8k=−8
k=8k = 8k=8