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# Excluded Values for Rational Expressions

## Excluding values that result in division by zero

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Excluded Values for Rational Expressions

Reduce rational expressions involving fractions to simplest terms and find their excluded values.
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• Video

## Simplifying Rational Expressions

Learn how to simply a fraction that has polynomials in the numerator and denominator.
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## Rational Expressions: A Sample Application

This video demonstrates a sample use of rational expressions.
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## Rational Expressions: An Explanation of the Concept

This video provides an explanation of the concept of rational expressions.
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• Critical Thinking

## Excluded Values for Rational Expressions Discussion Questions

A list of student-submitted discussion questions for Excluded Values for Rational Expressions.
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• Real World Application

## Curiosity Rover

Students apply their understanding of dividing polynomials to briefly analyze the area and dimensions of a piece of metal on NASA's Curiosity Rover.
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• Study Guide

## Solving Rational Equations Study Guide

This study guide gives an overview on simplifying rational expressions, solving rational equations, and removable zeros.
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