Please someone help me. Pf(x) = x4 - 2x3 - 6x2 + 6x + 9 04.11

A.) How many total zeros does this function have? (1 point)
Four
B.) Using p/q, list all possible rational zeros. (2 points)
Po
Sam - M
C.) Using Descartes' Rule of Signs, how many possible positive, negative,
and complex (imaginary) zeros are possible... list all possibilities. It might
be helpful to make a table (2 points)
D.) Find all the zeros to this function. Show your work/ thought
process. (HINT: THIS SHOULD TAKE SOME WORK! Show your work)