Answer:
17
Step-by-step explanation:
According to the graph below there are just 3 real zeros. If you count everything, there would be 17. I have chosen the real ones. But there are 14 others that all involve complex numbers. I don't know how you would find them.
Summary
There are 17 roots in total. 3 are real.
The Chinese act
3 : 1, or 3 to 1, thus 3 times as many.
-1 +1 = 0
Therefore no charge