Find a polynomial function that has real coefficients and that has zeros of 2/3,4,2i

the answer will be

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be

the answer for the second equation is (4,0)