Answer:
i think quadratic equation is the answer.
This was hard for me, but I believe I came to the right solutions...
7,-7,2i,-2i
It makes it easier because you are finding these smallest possible factors that go into 20
Hi there are 16 students said meaning there 4 left of the 20. So maybe the remaining students take both. That would be 4/20 simplified to 1/5.