Not getting the answer that is given, could use help with work shown

The polynomial P(x) has the following characteristics: P(x) has real coefficients. . Degree is 5 . Roots are 3, -1, and 5i . Leading coefficient is -4 The root at -1 has a multiplicity of 2 a. (5 points) Write P(x) as a product of linear factors with complex coefficients. b. (5 points) Write P(x) as the product of a linear factor and an irreducible quadratic factor