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# Mathematics III

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## We’ve updated this course!

We’ve recently made improvements to Mathematics 3! We’ve improved the scope and the structure to be better aligned to the spirit of the Common Core, and we've added content to cover more subjects! You are viewing the newer edition. Learn more or access older edition.

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Cancelling common factors: Rational functionsEnd behavior of rational functions: Rational functionsDiscontinuities of rational functions: Rational functionsGraphs of rational functions: Rational functions

Modeling with rational functions: Rational functionsMultiplying & dividing rational expressions: Rational functionsAdding subtracting rational expressions intro: Rational functionsAdding subtracting rational expressions (factored): Rational functionsAdding subtracting rational expressions (not factored): Rational functions