What is the domain of f(x)=log10(x2−9)f(x) = \log_{10}(x^2 - 9)f(x)=log10(x2−9)?
x>3x > 3x>3
x<−3x < -3x<−3 or x>3x > 3x>3
x≠±3x \neq \pm 3x=±3
x>0x > 0x>0