9/x-5 - 3/x2-25 What is the least common denominator?    4/x2+5x+6 - 2/x2-9 What is the least common denominator?

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.3: Add And Subtract Rational Expressions With A Common Denominator
Problem 168E: Explain how you find the Least Common Denominator of x2+5x+4 and x216 .
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9/x-5 - 3/x2-25

What is the least common denominator? 

 

4/x2+5x+6 - 2/x2-9

What is the least common denominator? 

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