SOLUTION: Need help simplify this rational expression. Thanks. (a^3-b^3) / (a^2-b^2) How did the back of the book get their answer? (a^2+ab+b^2) / (a+b)

Question 62597This question is from textbook
: Need help simplify this rational expression. Thanks. (a^3-b^3) / (a^2-b^2)
How did the back of the book get their answer? (a^2+ab+b^2) / (a+b) This question is from textbook

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

looking at the numerator, note that

add to both sides

substitute in original equation

multiply times

which is the book's answer

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