Complex roots of Polynomials
A way of seeing the complex roots of a polynomial seeing roots of unity.
Observe, in particular, for c= -1, n=2, 3, 4 to see roots of unity.
Also, by setting c = 1, n=2, you can see the 'phantom' parabolas from Zoe Griffiths great maths off
https://aperiodical.com/2018/07/the-big-internet-math-off-semi-final-1-nira-chamberlain-v-zoe-griffiths/