Final answer:
A non-constant polynomial p(z) with a complex number r can be represented as another polynomial q(z) when p(z) = q(z) + r, by defining q(z) = p(z) - r.
Step-by-step explanation:
If r is a complex number and p(z) is a non-constant polynomial with complex coefficients, we can create another polynomial q(z) such that p(z) = q(z) + r. This is simply done by setting q(z) = p(z) - r. Since r is a constant complex number, subtracting it from p(z) leaves us with another polynomial q(z) which when r is added back to it, gives us the original polynomial p(z).