Find the domain of f(x)=x+2x2+4x−12f(x) = \frac{x+2}{x^2 + 4x - 12}f(x)=x2+4x−12x+2.
All real numbers except x=6,−2x = 6, -2x=6,−2
All real numbers except x=−6,2x = -6, 2x=−6,2
All real numbers except x=−6,−2x = -6, -2x=−6,−2
All real numbers except x=6,2x = 6, 2x=6,2