Factor the polynomial function over the complex numbers

f(x)=x^4+9x^3+15x^2+9x+14

enter your answer in the box.

f(x) = blank

i think the answer is f(x) =

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.