Identify the hole of the function f(x)=x2−9x2−5x+6f(x) = \frac{x^2 - 9}{x^2 - 5x + 6}f(x)=x2−5x+6x2−9.
x=2x=2x=2
x=3x=3x=3
x=−3x=-3x=−3
None