## anonymous 4 years ago What number(s) should be excluded as values of x in the polynomial? x+2 over x squared minus 4

1. anonymous

$x+2 \over x ^{2}-4$

2. anonymous

A. 2 B. -2 C. 2 and -2 D. No exclusions

3. anonymous

x^2 - 4 = (x+2) (x-2)

4. anonymous

C

5. anonymous

Thanks!! :)

6. anonymous

deviding by zero is undefined, it is not allowed, the question becomes for which value of x will i be deviding by zero? or when will x^2 - 4 be equal to zero.