Consider the polynomial P(x) = 2x - 7x-3x + 21x-9.Given that x = 3 and x = 1/2 are zeros of P(x), find all remaining

Consider the polynomial P(x) = 2x - 7x²-3x² + 21x-9.Given that x = 3 and x = 1/2 are zeros of P(x), find all remaining zeros. Include complex zeros if there are any.(Give your answer in the form of a comma-separated list if needed. Express numbers in exact form. Use symbolic notation and fractions where needed. Enter DNE if there are no other zeros.)