Rational Expressions and Equations

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Define Rational Expression.

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A rational expression is a fraction where the numerator and the denominator are both polynomials.

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CCSS.HSA.APR.D.7

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What is the domain of a rational expression?

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The domain of a rational expression is all real numbers except where the denominator equals zero.

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No Solution.

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CCSS.HSA.REI.A.2

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CCSS.7.EE.B.4A

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CCSS.HSA.APR.D.7

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CCSS.HSA.APR.D.6

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CCSS.HSA.APR.D.6

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What is the process to add rational expressions?

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To add rational expressions, find a common denominator, rewrite each expression, and then combine the numerators.

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CCSS.HSA.APR.D.7

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What is the process to subtract rational expressions?

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To subtract rational expressions, find a common denominator, rewrite each expression, and then subtract the numerators.

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CCSS.HSA.APR.D.7

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What does it mean to simplify a rational expression?

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Simplifying a rational expression means reducing it to its lowest terms by canceling common factors in the numerator and denominator.

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CCSS.HSA.APR.D.6