SOLUTION: We are working on rational expressions. I can not seem to get the jist of building rational expressions to higher terms. Example, I know that if x +3 was mulitiplied by x^2 + 3^2 t

Question 218381: We are working on rational expressions. I can not seem to get the jist of building rational expressions to higher terms. Example, I know that if x +3 was mulitiplied by x^2 + 3^2 the result would be x^3 + 27. That's easy enough, but I have problems writing that in correctly factored form. Any hints on how I can get better at this? Example/Question: How would I correctly write 12/x +3 = ?/ x^3 + 27? Thanks for your assistance, tips and suggestions.
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Watch out
does NOT equal

Now that you see that. can you do the second one yourself?

The factorization of sum to cubes is given here --> http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Sum-or-Difference-of-Cubes.topicArticleId-38949,articleId-38892.html
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