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Simplifying Rational Functions with Factoring and GCFs - Problem 15 190 views
When we want to simplify rational expressions, we factor top and bottom completely and look for common factors to cancel. Sometimes, the factors are so close- they're only off by a + or - sign, or perhaps the order of the terms. It could be that you're working with opposite binomials: factor negative one out of one of the binomial terms, and it could be that the terms will "cancel" from there.
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