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April 21, 2014

April 21, 2014

Posted by **bates** on Friday, September 30, 2011 at 4:50pm.

x squared minus 16 over x squared minus 6x + 9

A. 3

B. 3 and -3

C. 4

D. 4 and -4

- math -
**Reiny**, Friday, September 30, 2011 at 5:00pm(x^2 - 16)/(x^ - 6x + 9)

= (x^2 - 16)/(x-3)^2

The only thing we have to worry about is not dividing by zero.

This will happen if x = 3

so the exclusion: x = 3 , looks like A)

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