form a fifth-degree, polynomial function with real coefficients such as 5I, 1-2 I, and -3 or zero and zero equals 750

Answer 1

P(x) = a(x - 5i)(x + 5i)(x - (1 - 2i))(x - (1 + 2i))(x + 3)

750 = a(0 - 5i)(0 + 5i)(0 - (1 - 2i))(0 - (1 + 2i))(0 + 3)

Solve for a and answer.