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What is the sum of all values of y for which the expression (y + 1)/(y^2 - 5y + 4 + y^2 - 6y) is undefined?

 Jun 7, 2022
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Hint:

because the demominator cannot equal 0. You must find the values of y such that 

the denominator will equal 0. You can use vieta's formula to find the sum of roots immediately. You can take it from here.

 Jun 7, 2022

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