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Define a rational expression.

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

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What is the first step in multiplying rational expressions?

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Factor all polynomials in the numerators and denominators.

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What is the rule for dividing rational expressions?

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To divide rational expressions, multiply by the reciprocal of the divisor.

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What does it mean to simplify a rational expression?

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To simplify a rational expression means to reduce it to its lowest terms by canceling common factors.

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What is a common mistake when multiplying rational expressions?

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A common mistake is forgetting to factor before canceling common terms.

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Define the term 'excluded value' in rational expressions.

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Excluded values are values of the variable that make the denominator zero, which are not allowed.

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