What is the domain of the function
\[f(x) = \frac{(2x - 3)(2x + 5)}{(3x - 9)(4x + 10)}?\]
Express your answer as an interval or as a union of intervals.
The domain includes all real 'x' except the values that cause the denominator to equal zero
so x cannot be 3 or - 2.5
You can take it from here ?