This is everything I was given to answer these questions. Please help!

I have been assigned two rational expressions to work on. I need to factor all polynomials completely.

First Rational Expression

a^2+ 2a - 10

-11a

Second Rational Expression

2x - 8

x^2- x

Explain what the meaning of domain is. 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

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. Useboldfont to emphasize the words in your writing.

• Domain
• Excluded value
• Set
• Factor
• Real numbers