Question

How do you find all additional roots given the roots 2+3i and `sqrt7`?

Answer 1

`2-3i` and `-sqrt(7)`

Explanation:

Complex roots always come in pairs. For example:
`+-i`, `1+-4i`, `2+-3i`

If `x^2 = 7`; `x` can be positive or negative: `x=+-sqrt(7)`