Byzantines didn't "become more Greek than Roman". They were already Greek to start with.
But anyways... lets not have me rant about that part.
The population was Greek. The empire was split into West and East. West centered on Rome (before the fall) and the East on Constantinople (A town in Greek). From the division working language was Greek.
Greek language and couture was more prevalent in the Eastern Roman Empire. When the fall of the West Byzantine court held onto the Latin language for official decrees and other state documents, but eventually even that was lost to the grater Greek influence.
Hoped this helped! Remember to change this to your own words. <span />
The act was about ensuring people have voting rights and preventing states from preventing voting rights in various ways such as having literacy tests or voting taxes or anything similar. One effect can be that it enabled for all people to vote regardless of color or origin, and another is that it enabled minorities and immigrants to vote too because it enabled minorities who didn't know English that well to vote using bilingual ballots.
<span />
Colloquial? I think. Hope this helps
Answer to your question when I factored:
4a^2 (8a+3)