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CHAPTER_ppt_7_3

CHAPTER_ppt_7_3 - Â 7.3 Adding and Subtracting Rational...

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Unformatted text preview: Â§ 7.3 Adding and Subtracting Rational Expressions with Common Denominators and Least Common Denominators Martin-Gay, Beginning and Intermediate Algebra, 4ed 2 Rational Expressions Adding and subtracting rational expressions with common denominators when P , Q and R are polynomials and R â‰  0, R Q P R Q R P + = + R Q P R Q R P- =- Martin-Gay, Beginning and Intermediate Algebra, 4ed 3 Add the following rational expressions. = + + + +- 7 2 8 3 7 2 3 4 p p p p 7 2 5 7 + + p p = + + +- 7 2 8 3 3 4 p p p Adding Rational Expressions Example: Martin-Gay, Beginning and Intermediate Algebra, 4ed 4 Subtract the following rational expressions. =--- 2 16 2 8 y y y =-- 2 16 8 y y =-- 2 ) 2 ( 8 y y 8 Subtracting Rational Expressions Example: Martin-Gay, Beginning and Intermediate Algebra, 4ed 5 Subtract the following rational expressions. =- +-- + 10 3 6 10 3 3 2 2 y y y y y =- +- 10 3 6 3 2 y y y =- +- ) 2 )( 5 ( ) 2 ( 3 y y y 5 3 + y Subtracting Rational Expressions Example: Martin-Gay, Beginning and Intermediate Algebra, 4ed...
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CHAPTER_ppt_7_3 - Â 7.3 Adding and Subtracting Rational...

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