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The two rational expressions are: 9b2+3 41 and 2x-610x+5x Explain what the meaning of domain is and the domain in your work. Also, explain why a denominator cannot be zero. Find the domain for each of your two rational expressions. Write the domain of each rational expression in set notation (as demonstrated in the example). Do both of your rational expressions have excluded values in their domains? If yes, explain why they are to be excluded from the domains. If no, explain why no exclusions are necessary. Incorporate the following five math vocabulary words into your discussion. Domain Excluded value Set Factor Real numbers