If there is no remainder, then the dividend is a factor of the original.
Use the links below for extra help/practice
Synthetic Division
https://www.khanacademy.org/math/algebra2/polynomial_and_rational/synthetic-division/v/synthetic-division
https://www.youtube.com/watch?v=bZoMz1Cy1T4
https://www.youtube.com/watch?v=nefo9cUo-wg
Long Division
https://www.youtube.com/watch?v=l6_ghhd7kwQ
https://www.youtube.com/watch?v=FTRDPB1wR5Y
Homework:Pg. 308 - 310 12 - 15, 18, 20, 23 - 28, 31 - 37, 40 - 42, 44, 50, 60, 67 - 70