Question

Determine the domain of the function 9x/x(x^2-36)

Answer 1

{ x ≠ ±6 ∪ x ≠ ± 6}

Explanation:

x cannot be zero even though x can be cancelled in this expression. Furthermore, x^2 - 36 cannot be zero, and thus x ≠ ±6.

Domain is { x ≠ ±6 ∪ x ≠ ± 6}