Rational Expressions - Gavilan College

§6.1 The Domains of Rational Expressions & Multiplication & Division. Recall that a rational number is a quotient of integers. A rational expression is a quotient of polynomials, such as: P where Q(0 and P and Q are polynomials. Q. A rational expression can be evaluated just as any polynomial, except. that a rational expression can be . undefined when the denominator is equal to zero. In ... ................
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