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What is the sum of all values of y for which the expression (y + 6)/(y^2 - 5) is undefined?

 Jun 29, 2022
 #1
avatar+124676 
+1

The denominator  cannot  = 0

 

So

 

y^2  - 5 =  0

 

y^2  = 5

 

y =  ± 5 

 

The sum of these values =  0

 

 

cool cool cool  

 Jun 29, 2022

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