The discussion revolves around formatting equations in LaTeX, specifically how to split a long term in an equation so that the second half aligns directly under a specific operator (the '+' sign) rather than under the equality sign. Participants suggest using the "align*" and "split" environments for better control over the layout. The use of ampersands (&) as alignment points is emphasized, allowing for precise placement of terms across multiple lines. There are also discussions about nesting environments and managing spacing to achieve the desired appearance. Additionally, participants share resources, including guides on LaTeX formatting, and discuss how to number multiline equations effectively using the subequations environment. The conversation highlights the challenges of formatting complex equations and offers practical solutions for achieving clarity and organization in mathematical presentations.