Combining rational expression with unlike denominators

The video tutorial explains how to find the least common multiple (LCM) of binomials and apply the distributive property to combine rational expressions. It covers examples of finding the LCM by multiplying denominators and discusses the importance of common denominators. The tutorial also demonstrates combining like terms and factoring, while highlighting restrictions on denominators to avoid division by zero.

Explain how to determine the least common denominator when adding rational expressions.

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What is the least common multiple (LCM) of the binomials X - 3 and X + 1?

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What steps are involved in applying the distributive property to combine like terms in a rational expression?

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Can the expression 2X^2 + 3X + 9 be factored? Explain your reasoning.

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How do you find restrictions on the variable in a rational expression?

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