Because x²+1 has an imaginary solution so you can’t find a value to put on the side for synthetic division
Answer:
x = 35
Step-by-step explanation:
1. Add all angles

= 
2. Match 360 and fix





Hope this helps
G= 40
5x8=40
40/8=5
All you have to do is inverse operations so instead of dividing you multiply your 5 and 8 to get 40 and then check your work.