Wednesday

January 28, 2015

January 28, 2015

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)

**Answer this Question**

**Related Questions**

Algebra - How do you find the excluded value if there is another variable or ...

math 176 - please detail all the steps for x squared minus 6xy plus 9y squared ...

math - Simplify completely quantity 6 x squared minus 54 plus 84 over quantity 8...

please help in math homework - x squared minus 6xy plus 9y squared minus 4z ...

math - what is z cube 3 plus z squared minus 7z-7 divide z squared minus 3z ...

math - (X^2-1)/(x-1) = (x+1)(x-1)/(x-1) = x+1. If you then subtract your ...

math - What is 42q squared minus 19qt minus 35t squared?

math 1 - what is c squared minus 6cd plus 9d squared minus 4

Math - 2x cubed minus x squared minus 6x plus 3. I know the answer is (2x-1)(x ...

Math - 2x cubed minus x squared minus 6x plus 3. I know the answer is (2x-1)(x ...