+0  
 
0
53
1
avatar+836 

Find the number of values of x for which \(\frac{x^8 - 7x^5 + 2x^4 + 2x - 1}{x^4 - 11x^3 + 25x^2 + 39x - 126}\)
is undefined.

 Dec 22, 2018
 #1
avatar+94453 
+1

We only need worry about the x values that make the denominator  = 0

 

This graph shows that there are three of them...

 

https://www.desmos.com/calculator/hy6vrddzp9

 

x =  -2     x  =  3    and   x   = 7

 

 

cool cool cool

 Dec 22, 2018

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