What is the best way to go about finding the LCD of rational expressions?

Mathematics
Tutor: None Selected Time limit: 1 Day

The way my professor explains it is confusing and not how I remember learning it in high school

Oct 8th, 2015

Thank you for the opportunity to help you with your question!

For example x^2y - xy^2, 3x-3y, x^2 -2xy+y^2

x^2y - xy^2 = xy(x-y)

3x-3y = 3(x-y)

x^2 -2xy+y^2 = (x-y)^2

LCM = 3xy(x-y)^2

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 8th, 2015

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