Hi



CANNOT have a ZERO in the demonimator

16x^3 ≠ 0   x ≠ 0

x^2-9 = (x+3)(x-3) ≠ 0  |x ≠ -3 and x ≠ 3

Domain {x| x ≠ 0 and x ≠ 3 and x ≠ -3} 

 Which says x can be any real number with the exception of the values listed 

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