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8.3 Dividing Rational Expressions

8.3 Dividing Rational Expressions. CORD Math Mrs. Spitz Fall 2006. Objective. Divide rational expressions. Upcoming. 8.3 Friday 10/20 8.4 Monday 10/23 8.5 Tuesday/Wednesday – Skip 8.6 8.7 Thursday 10/26 8.8 Friday 10/27 8.9 Monday 10/30 8.10 Tuesday/Wed Chapter 8 Review Wed/Thur

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8.3 Dividing Rational Expressions

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  1. 8.3 Dividing Rational Expressions CORD Math Mrs. Spitz Fall 2006

  2. Objective • Divide rational expressions

  3. Upcoming • 8.3 Friday 10/20 • 8.4 Monday 10/23 • 8.5 Tuesday/Wednesday – Skip 8.6 • 8.7 Thursday 10/26 • 8.8 Friday 10/27 • 8.9 Monday 10/30 • 8.10 Tuesday/Wed • Chapter 8 Review Wed/Thur • Chapter 8 Test Friday

  4. Assignment • Pg. 317 #3-33 all

  5. Introduction • You should recall that two numbers whose product is 1 are called multiplicative inverses or reciprocals. • To find the quotient of two fractions, you multiply by the reciprocal of the divisor. You can use this same method to divide rational expressions.

  6. Ex. 1: Find The reciprocal of is

  7. Ex. 2: Find The reciprocal of is

  8. Ex. 3: Find Multiply by the reciprocal. Factor difference of squares and perfect square trinomial. Cancel common factors. = 1 All factors cancel leaving 1/1 or 1.

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