Factorize: (2x + 3y)² + 2(2x + 3y) (x + y) + (x + y)² 

Ineed with what i should write for my research paper. my topic is history of slavery. 1800 words. all i need is what to write in each paragraphs. like when the research paper has titles for each paragraph and it explains the tile in each paragraph. for example when did slaverh begin? why did it begin like an outline.

How does the pyramid of giza include art, science, math, or a need for infrastructure?

What does the document of the birtish octopus is an uderlying cause of the world war 1