What are the zeros of q(x) x(x - 3)(x 5).?

Answer 1

It is difficult to be sure because the browser used for posting questions is pretty much useless and strip out most mathematical symbols. Having made that clear, the answer is probably 0, 3 and -5.

Answer 2

I guess your function was: q(x) = x(x - 3)(x + 5)

The zeros are when x = 0, 3 or -5.