+0  
 
0
30
3
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What is the sum of all values of y for which the expression (y + 6)/(y^2 - 5y + 4 + y^2 - y - 8) is undefined?

 Jun 23, 2022
 #2
avatar+117487 
+1

The denominator will have to be 0.  You cannot divide by 0

 Jun 23, 2022

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