Question

What number(s) should be excluded as values of x in the polynomial?

x+2 over x squared minus 4

Answer 1

\[x+2 \over x ^{2}-4\]

Answer 2

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

Answer 3

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

Answer 4

C

Answer 5

Thanks!! :)

Answer 6

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.