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What is the largest value of x such that (x + 1)/(7x^2 - 50x + 7) is not defined?

 Oct 7, 2020
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What is the largest value of x such that (x + 1)/(7x^2 - 50x + 7) is not defined?  

 

To be undefined, the denomitor has to equal zero. 

 

Factor 7x2 – 50x + 7 and obtain (7x – 1)(x – 7) then set each factor equal to zero. 

 

7x – 1 = 0  therefore  x = 1/7  

  x – 7 = 0  therefore  x = 7   

 

You want the larger value, so your answer is x = 7  

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 Oct 7, 2020

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