Question

When the polynomial P(x) = 3x3 − 2x2 + kx − 12 is divided by x − 3, the remainder is 0. Which of the following is also a factor of P(x)?

Answer 1

`27 - 12 + 3k - 12 = 0 \\ 3k + 3 = 0 \\ k = - 1`
another factor

`3 {x}^(2) + 7x + 20 + (48)/(x - 3)`