Simplify, Multiply & Divide Rational Expressions.

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Presentation transcript:

Simplify, Multiply & Divide Rational Expressions

Vocabulary Rational Expression Rational Expression - An expression that can be written as a ratio of 2 polynomials Excluded Value Excluded Value – A number that makes a rational expression undefined. Simplest form of a rational expression Simplest form of a rational expression – Numerator and denominator have no factors in common other than 1.

How can I simplify?

EX. Simplify the expression. State the excluded value. 1.Divide Numbers 2.Simplify Variables

EX. Simplify the expression. State the excluded value.

Divide the Polynomial

Multiply Rational Functions 1.Multiply Numerators 2.Multiply Denominators 3.Simplify (See previous slide)

Divide Rational Functions “Keep Change Flip!” Divide Rational Functions “Keep Change Flip!” 1.Change Division to Multiplication 2.Flip the 2 nd Fraction 3.Simplify (See previous slide)

Multiply or Divide Rational Functions Multiply or Divide Rational Functions