This video will demonstrate the use of factor theorem to determine whether a given polynomial is a factor of another polynomial.
You can also watch the following videos about polynomial function.
Remainder Theorem
https://www.youtube.com/watch?v=5ZuVkVrcsG8&t=574s
Synthetic Division
https://www.youtube.com/watch?v=GwRfOtJVfsU&t=51s
Long Division Part 1
https://www.youtube.com/watch?v=DiDdMhyoNJk&t=220s
Long Division Part 2
https://www.youtube.com/watch?v=aupqfHWX3Vk