The Fundamental Theorem of Algebra Write polynomials in factored form using the fundamental theorem of algebra. Write the equation of a polynomial function f left parenthesis x right parenthesis with real coefficients that have zeros 5i and 4, which has multiplicity 2. a.) f left parenthesis x right parenthesis equals x to the power of 4 plus 41 x squared plus 400 b.) f left parenthesis x right parenthesis equals x to the power of 4 minus 8 x cubed plus 41 x squared minus 200 x plus 400 c.) f left parenthesis x right parenthesis equals x cubed minus left parenthesis 8 plus 5 i right parenthesis x squared plus left parenthesis 16 plus 40 i right parenthesis x minus 80 i d.) f left parenthesis x right parenthesis equals x to the power of 4 minus 9 x squared minus 400