From what i understand you Factorize first, then use the difference of two square rule.
If in doubt just use the -b forumula though
Not that simple, but thanks.
I have broken it into two quadratics, but as its complex I need to represent the alternative roots in terms of complex exponentials.
I am having some trouble on this stage as I think i should square root something twice, whereas my answers tells me I don't need to
thanks again for trying