Question: A rational expression is the quotient of two

Answer: Polynomials

Question: The set of real numbers for which a rational expression is defined is the ______ of the expression

Answer: Domain

Question: One must exclude all numbers from this set that make the denominator of the rational expression

Answer: Zero

Question: Simplify a rational expression by ______

the numerator and the denominator completely. Then divide the numerator and the denominator by any______.

Answer: Factoring; common factors.