Rational Expression Definition Practice

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In this section, we will introduce the rational expression and learn the Rational Expression Definition. We begin with the definition for a rational number.
A rational number is any number that can be formed as the quotient of two integers (with a non-zero denominator). Similarly, a rational expression is the quotient
of two polynomials (with a non-zero denominator). Recall that we can never divide by zero and if we see division by zero, that expression is considered "undefined".
Since there is a denominator involved with a rational expression, we are concerned with where the rational expression is undefined. This simply means we are finding
values for the variable that make the denominator zero. Any value that does this is considered a restricted value. The next scenario we deal with is how to simplify a
rational expression. We perform this operation by factoring the numerator and denominator completely, then canceling any common factors.

Rational Expression Definition Resources:

Videos:

Virtual Nerd - Video
Khan Academy - Video
Khan Academy - Video
Text Lessons:

Math is Fun - Text Lesson
Khan Academy - Text Lesson
Purple Math - Text Lesson
Worksheets:

MESACC EDU - Worksheet
Khan Academy - Practice
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