FLASHCARD- Rational Expressions Operations MULT/Divide

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What is 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 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 in the numerator and denominator.

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How do you multiply two rational expressions?

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To multiply two rational expressions, multiply the numerators together and the denominators together, then simplify if possible.

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What is the process for dividing rational expressions?

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To divide rational expressions, multiply the first expression by the reciprocal of the second expression, then simplify.

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What are excluded values in rational expressions?

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

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Set the denominator equal to zero: x - 3 = 0, so x = 3 is an excluded value.

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What is the formula for multiplying rational expressions?

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