Information is given about a polynomial fx whose coefficient

Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 4; zeros: i, - 11 + i Enter the remaining zeros of f. (Use a comma to separate answers as needed.)

Solution

i and -11+i are roots

then thier conjugates also roots

so , remaining roots are -i and -11-i

so, the all roots are i , -i , -11+i and -11-i