Discuss orestes change of heart before and after he murders his mother and uncle

Write a two page essay using quotes on the book Aeschylus The Oresteia: Agamemnon, The Libation Bearers, The Eumenides which is translated by Robert Fagles. ISBN number is 0140443339 please use this book so I can have correct page numbers. In the short story The Libation Bearers use a lot of quotes and careful analysis discussing Orestes change of heart before and after he murders his mother and uncle. The only source I need is the book nothing else. Dont put college words in but make it good enough for me to get a B.