how to solve equation with square root

[lrdheat]

A question...if in such an example as this, can I safely assume that, after using “domain” that all results that fall outside of the domain are correct complex results, that in this case, would be -2i and i?

The CASIO fx-cg50 is a surprisingly good calculator, quite useful in graphical analysis. Surprised that it’s complex capability is not complete (ASIN 2.4 yields an error, for example). Surprised it will not find prime factors of a number. Also surprised that it has difficulty with integrals with undefined endpoints or within an interval (integral of 1/(5ROOT x-1) from 0 to 33, as an example...even a TI 36X Pro can deal with this sort of problem). One is forced to divide into 2 integrals, or if endpoints are problematic, add or subtract 1 E -12 to the undefined endpoint as appropriate.