Rational expressions 8.11.

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Presentation transcript:

Rational expressions 8.11

Rational expression A rational expression is a ratio of two polynomials. Essentially a fraction with a polynomial for both the numerator and denominator.

Examples of rational expressions

Simplifying rational functions Simplifying a rational function is essentially reducing the fraction. It must first be completely factored. We can divide out (cancel) and common factors. ******You can never cancel if you are adding/subtracting You can only cancel factors!!!!!

Examples Simplify each:

examples Simplify each:

Homework Simplifying Rational Expressions Worksheet