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# 10.1 Simplifying Rational Expressions - PowerPoint PPT Presentation

10.1 Simplifying Rational Expressions. Goal : to simplify a rational expression. Simplifying Rational Expressions. A “ ratio nal expression ” is the quotient of two polynomials. (division). Simplifying Rational Expressions.

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Presentation Transcript

• Goal: to simplify a rational expression

• A “rational expression” is the quotient of two polynomials. (division)

• A “rational expression” is the quotient of two polynomials. (division)

• A rational expression is in simplest form when the numerator and denominator have no common factors (other than 1)

• A “rational expression” is the quotient of two polynomials. (division)

• A rational expression is in simplest Form when the numerator and denominator have no common factors (other than 1)

• Factor the numerator completely (factor out a common factor, difference of 2 squares, bottoms up)

• Factor the denominator completely (factor out a common factor, difference of 2 squares, bottoms up)

• Cancel out any common factors (not addends)

• A factor is in between a multiplication sign

• An addend is in between an addition or subtraction sign

Example:

x + 33x + 9

x – 9 6x + 3

a-b = -1

b-a

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